19980264780

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{1291}}^1$

素因数の和:1557

約数の個数: 288

約数和(自身を含む): 70701216768

約数和(自身を除く): 50720951988

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 71, 84, 90, 105, 126, 140, 142, 173, 180, 210, 213, 252, 284, 315, 346, 355, 420, 426, 497, 519, 630, 639, 692, 710, 852, 865, 994, 1038, 1065, 1211, 1260, 1278, 1291, 1420, 1491, 1557, 1730, 1988, 2076, 2130, 2422, 2485, 2556, 2582, 2595, 2982, 3114, 3195, 3460, 3633, 3873, 4260, 4473, 4844, 4970, 5164, 5190, 5964, 6055, 6228, 6390, 6455, 7266, 7455, 7746, 7785, 8946, 9037, 9940, 10380, 10899, 11619, 12110, 12283, 12780, 12910, 14532, 14910, 15492, 15570, 17892, 18074, 18165, 19365, 21798, 22365, 23238, 24220, 24566, 25820, 27111, 29820, 31140, 36148, 36330, 36849, 38730, 43596, 44730, 45185, 46476, 49132, 54222, 54495, 58095, 61415, 72660, 73698, 77460, 81333, 85981, 89460, 90370, 91661, 108444, 108990, 110547, 116190, 122830, 135555, 147396, 162666, 171962, 180740, 183322, 184245, 217980, 221094, 223343, 232380, 245660, 257943, 271110, 274983, 325332, 343924, 366644, 368490, 406665, 429905, 442188, 446686, 458305, 515886, 542220, 549966, 552735, 641627, 670029, 736980, 773829, 813330, 824949, 859810, 893372, 916610, 1031772, 1099932, 1105470, 1116715, 1283254, 1289715, 1340058, 1374915, 1547658, 1563401, 1626660, 1649898, 1719620, 1833220, 1924881, 2010087, 2210940, 2233430, 2566508, 2579430, 2680116, 2749830, 3095316, 3126802, 3208135, 3299796, 3350145, 3849762, 3869145, 4020174, 4124745, 4466860, 4690203, 5158860, 5499660, 5774643, 6253604, 6416270, 6700290, 7699524, 7738290, 7817005, 8040348, 8249490, 9380406, 9624405, 10050435, 11549286, 12832540, 13400580, 14070609, 15476580, 15634010, 15857353, 16498980, 18760812, 19248810, 20100870, 23098572, 23451015, 28141218, 28873215, 31268020, 31714706, 38497620, 40201740, 46902030, 47572059, 56282436, 57746430, 63429412, 70353045, 79286765, 93804060, 95144118, 111001471, 115492860, 140706090, 142716177, 158573530, 190288236, 222002942, 237860295, 281412180, 285432354, 317147060, 333004413, 444005884, 475720590, 555007355, 570864708, 666008826, 713580885, 951441180, 999013239, 1110014710, 1332017652, 1427161770, 1665022065, 1998026478, 2220029420, 2854323540, 3330044130, 3996052956, 4995066195, 6660088260, 9990132390, 19980264780]

約数ペア:

[(1, 19980264780), (2, 9990132390), (3, 6660088260), (4, 4995066195), (5, 3996052956), (6, 3330044130), (7, 2854323540), (9, 2220029420), (10, 1998026478), (12, 1665022065), (14, 1427161770), (15, 1332017652), (18, 1110014710), (20, 999013239), (21, 951441180), (28, 713580885), (30, 666008826), (35, 570864708), (36, 555007355), (42, 475720590), (45, 444005884), (60, 333004413), (63, 317147060), (70, 285432354), (71, 281412180), (84, 237860295), (90, 222002942), (105, 190288236), (126, 158573530), (140, 142716177), (142, 140706090), (173, 115492860), (180, 111001471), (210, 95144118), (213, 93804060), (252, 79286765), (284, 70353045), (315, 63429412), (346, 57746430), (355, 56282436), (420, 47572059), (426, 46902030), (497, 40201740), (519, 38497620), (630, 31714706), (639, 31268020), (692, 28873215), (710, 28141218), (852, 23451015), (865, 23098572), (994, 20100870), (1038, 19248810), (1065, 18760812), (1211, 16498980), (1260, 15857353), (1278, 15634010), (1291, 15476580), (1420, 14070609), (1491, 13400580), (1557, 12832540), (1730, 11549286), (1988, 10050435), (2076, 9624405), (2130, 9380406), (2422, 8249490), (2485, 8040348), (2556, 7817005), (2582, 7738290), (2595, 7699524), (2982, 6700290), (3114, 6416270), (3195, 6253604), (3460, 5774643), (3633, 5499660), (3873, 5158860), (4260, 4690203), (4473, 4466860), (4844, 4124745), (4970, 4020174), (5164, 3869145), (5190, 3849762), (5964, 3350145), (6055, 3299796), (6228, 3208135), (6390, 3126802), (6455, 3095316), (7266, 2749830), (7455, 2680116), (7746, 2579430), (7785, 2566508), (8946, 2233430), (9037, 2210940), (9940, 2010087), (10380, 1924881), (10899, 1833220), (11619, 1719620), (12110, 1649898), (12283, 1626660), (12780, 1563401), (12910, 1547658), (14532, 1374915), (14910, 1340058), (15492, 1289715), (15570, 1283254), (17892, 1116715), (18074, 1105470), (18165, 1099932), (19365, 1031772), (21798, 916610), (22365, 893372), (23238, 859810), (24220, 824949), (24566, 813330), (25820, 773829), (27111, 736980), (29820, 670029), (31140, 641627), (36148, 552735), (36330, 549966), (36849, 542220), (38730, 515886), (43596, 458305), (44730, 446686), (45185, 442188), (46476, 429905), (49132, 406665), (54222, 368490), (54495, 366644), (58095, 343924), (61415, 325332), (72660, 274983), (73698, 271110), (77460, 257943), (81333, 245660), (85981, 232380), (89460, 223343), (90370, 221094), (91661, 217980), (108444, 184245), (108990, 183322), (110547, 180740), (116190, 171962), (122830, 162666), (135555, 147396)]