638357580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{277}}^1$

素因数の和:389

約数の個数: 288

約数和(自身を含む): 2331463680

約数和(自身を除く): 1693106100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 31, 35, 36, 42, 45, 59, 60, 62, 63, 70, 84, 90, 93, 105, 118, 124, 126, 140, 155, 177, 180, 186, 210, 217, 236, 252, 277, 279, 295, 310, 315, 354, 372, 413, 420, 434, 465, 531, 554, 558, 590, 620, 630, 651, 708, 826, 831, 868, 885, 930, 1062, 1085, 1108, 1116, 1180, 1239, 1260, 1302, 1385, 1395, 1652, 1662, 1770, 1829, 1860, 1939, 1953, 2065, 2124, 2170, 2478, 2493, 2604, 2655, 2770, 2790, 3255, 3324, 3540, 3658, 3717, 3878, 3906, 4130, 4155, 4340, 4956, 4986, 5310, 5487, 5540, 5580, 5817, 6195, 6510, 7316, 7434, 7756, 7812, 8260, 8310, 8587, 9145, 9695, 9765, 9972, 10620, 10974, 11634, 12390, 12465, 12803, 13020, 14868, 16343, 16461, 16620, 17174, 17451, 18290, 18585, 19390, 19530, 21948, 23268, 24780, 24930, 25606, 25761, 27435, 29085, 32686, 32922, 34348, 34902, 36580, 37170, 38409, 38780, 39060, 42935, 49029, 49860, 51212, 51522, 54870, 58170, 60109, 64015, 65372, 65844, 69804, 74340, 76818, 77283, 81715, 82305, 85870, 87255, 98058, 103044, 109740, 114401, 115227, 116340, 120218, 128030, 128805, 147087, 153636, 154566, 163430, 164610, 171740, 174510, 180327, 192045, 196116, 228802, 230454, 240436, 245145, 256060, 257610, 294174, 300545, 309132, 326860, 329220, 343203, 349020, 360654, 384090, 386415, 457604, 460908, 490290, 506633, 515220, 540981, 572005, 576135, 588348, 601090, 686406, 721308, 735435, 768180, 772830, 901635, 980580, 1013266, 1029609, 1081962, 1144010, 1152270, 1202180, 1372812, 1470870, 1519899, 1545660, 1716015, 1803270, 2026532, 2059218, 2163924, 2288020, 2304540, 2533165, 2704905, 2941740, 3039798, 3432030, 3546431, 3606540, 4118436, 4559697, 5066330, 5148045, 5409810, 6079596, 6864060, 7092862, 7599495, 9119394, 10132660, 10296090, 10639293, 10819620, 14185724, 15198990, 17732155, 18238788, 20592180, 21278586, 22798485, 30397980, 31917879, 35464310, 42557172, 45596970, 53196465, 63835758, 70928620, 91193940, 106392930, 127671516, 159589395, 212785860, 319178790, 638357580]

約数ペア:

[(1, 638357580), (2, 319178790), (3, 212785860), (4, 159589395), (5, 127671516), (6, 106392930), (7, 91193940), (9, 70928620), (10, 63835758), (12, 53196465), (14, 45596970), (15, 42557172), (18, 35464310), (20, 31917879), (21, 30397980), (28, 22798485), (30, 21278586), (31, 20592180), (35, 18238788), (36, 17732155), (42, 15198990), (45, 14185724), (59, 10819620), (60, 10639293), (62, 10296090), (63, 10132660), (70, 9119394), (84, 7599495), (90, 7092862), (93, 6864060), (105, 6079596), (118, 5409810), (124, 5148045), (126, 5066330), (140, 4559697), (155, 4118436), (177, 3606540), (180, 3546431), (186, 3432030), (210, 3039798), (217, 2941740), (236, 2704905), (252, 2533165), (277, 2304540), (279, 2288020), (295, 2163924), (310, 2059218), (315, 2026532), (354, 1803270), (372, 1716015), (413, 1545660), (420, 1519899), (434, 1470870), (465, 1372812), (531, 1202180), (554, 1152270), (558, 1144010), (590, 1081962), (620, 1029609), (630, 1013266), (651, 980580), (708, 901635), (826, 772830), (831, 768180), (868, 735435), (885, 721308), (930, 686406), (1062, 601090), (1085, 588348), (1108, 576135), (1116, 572005), (1180, 540981), (1239, 515220), (1260, 506633), (1302, 490290), (1385, 460908), (1395, 457604), (1652, 386415), (1662, 384090), (1770, 360654), (1829, 349020), (1860, 343203), (1939, 329220), (1953, 326860), (2065, 309132), (2124, 300545), (2170, 294174), (2478, 257610), (2493, 256060), (2604, 245145), (2655, 240436), (2770, 230454), (2790, 228802), (3255, 196116), (3324, 192045), (3540, 180327), (3658, 174510), (3717, 171740), (3878, 164610), (3906, 163430), (4130, 154566), (4155, 153636), (4340, 147087), (4956, 128805), (4986, 128030), (5310, 120218), (5487, 116340), (5540, 115227), (5580, 114401), (5817, 109740), (6195, 103044), (6510, 98058), (7316, 87255), (7434, 85870), (7756, 82305), (7812, 81715), (8260, 77283), (8310, 76818), (8587, 74340), (9145, 69804), (9695, 65844), (9765, 65372), (9972, 64015), (10620, 60109), (10974, 58170), (11634, 54870), (12390, 51522), (12465, 51212), (12803, 49860), (13020, 49029), (14868, 42935), (16343, 39060), (16461, 38780), (16620, 38409), (17174, 37170), (17451, 36580), (18290, 34902), (18585, 34348), (19390, 32922), (19530, 32686), (21948, 29085), (23268, 27435), (24780, 25761), (24930, 25606)]