398685420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:285

約数の個数: 288

約数和(自身を含む): 1459261440

約数和(自身を除く): 1060576020

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, 173, 177, 180, 186, 210, 217, 236, 252, 279, 295, 310, 315, 346, 354, 372, 413, 420, 434, 465, 519, 531, 558, 590, 620, 630, 651, 692, 708, 826, 865, 868, 885, 930, 1038, 1062, 1085, 1116, 1180, 1211, 1239, 1260, 1302, 1395, 1557, 1652, 1730, 1770, 1829, 1860, 1953, 2065, 2076, 2124, 2170, 2422, 2478, 2595, 2604, 2655, 2790, 3114, 3255, 3460, 3540, 3633, 3658, 3717, 3906, 4130, 4340, 4844, 4956, 5190, 5310, 5363, 5487, 5580, 6055, 6195, 6228, 6510, 7266, 7316, 7434, 7785, 7812, 8260, 9145, 9765, 10207, 10380, 10620, 10726, 10899, 10974, 12110, 12390, 12803, 13020, 14532, 14868, 15570, 16089, 16461, 18165, 18290, 18585, 19530, 20414, 21452, 21798, 21948, 24220, 24780, 25606, 26815, 27435, 30621, 31140, 32178, 32922, 36330, 36580, 37170, 37541, 38409, 39060, 40828, 43596, 48267, 51035, 51212, 53630, 54495, 54870, 61242, 64015, 64356, 65844, 71449, 72660, 74340, 75082, 76818, 80445, 82305, 91863, 96534, 102070, 107260, 108990, 109740, 112623, 115227, 122484, 128030, 142898, 150164, 153105, 153636, 160890, 164610, 183726, 187705, 192045, 193068, 204140, 214347, 217980, 225246, 230454, 241335, 256060, 285796, 306210, 316417, 321780, 329220, 337869, 357245, 367452, 375410, 384090, 428694, 450492, 459315, 460908, 482670, 563115, 576135, 612420, 632834, 643041, 675738, 714490, 750820, 768180, 857388, 918630, 949251, 965340, 1071735, 1126230, 1152270, 1265668, 1286082, 1351476, 1428980, 1582085, 1689345, 1837260, 1898502, 2143470, 2214919, 2252460, 2304540, 2572164, 2847753, 3164170, 3215205, 3378690, 3797004, 4286940, 4429838, 4746255, 5695506, 6328340, 6430410, 6644757, 6757380, 8859676, 9492510, 11074595, 11391012, 12860820, 13289514, 14238765, 18985020, 19934271, 22149190, 26579028, 28477530, 33223785, 39868542, 44298380, 56955060, 66447570, 79737084, 99671355, 132895140, 199342710, 398685420]

約数ペア:

[(1, 398685420), (2, 199342710), (3, 132895140), (4, 99671355), (5, 79737084), (6, 66447570), (7, 56955060), (9, 44298380), (10, 39868542), (12, 33223785), (14, 28477530), (15, 26579028), (18, 22149190), (20, 19934271), (21, 18985020), (28, 14238765), (30, 13289514), (31, 12860820), (35, 11391012), (36, 11074595), (42, 9492510), (45, 8859676), (59, 6757380), (60, 6644757), (62, 6430410), (63, 6328340), (70, 5695506), (84, 4746255), (90, 4429838), (93, 4286940), (105, 3797004), (118, 3378690), (124, 3215205), (126, 3164170), (140, 2847753), (155, 2572164), (173, 2304540), (177, 2252460), (180, 2214919), (186, 2143470), (210, 1898502), (217, 1837260), (236, 1689345), (252, 1582085), (279, 1428980), (295, 1351476), (310, 1286082), (315, 1265668), (346, 1152270), (354, 1126230), (372, 1071735), (413, 965340), (420, 949251), (434, 918630), (465, 857388), (519, 768180), (531, 750820), (558, 714490), (590, 675738), (620, 643041), (630, 632834), (651, 612420), (692, 576135), (708, 563115), (826, 482670), (865, 460908), (868, 459315), (885, 450492), (930, 428694), (1038, 384090), (1062, 375410), (1085, 367452), (1116, 357245), (1180, 337869), (1211, 329220), (1239, 321780), (1260, 316417), (1302, 306210), (1395, 285796), (1557, 256060), (1652, 241335), (1730, 230454), (1770, 225246), (1829, 217980), (1860, 214347), (1953, 204140), (2065, 193068), (2076, 192045), (2124, 187705), (2170, 183726), (2422, 164610), (2478, 160890), (2595, 153636), (2604, 153105), (2655, 150164), (2790, 142898), (3114, 128030), (3255, 122484), (3460, 115227), (3540, 112623), (3633, 109740), (3658, 108990), (3717, 107260), (3906, 102070), (4130, 96534), (4340, 91863), (4844, 82305), (4956, 80445), (5190, 76818), (5310, 75082), (5363, 74340), (5487, 72660), (5580, 71449), (6055, 65844), (6195, 64356), (6228, 64015), (6510, 61242), (7266, 54870), (7316, 54495), (7434, 53630), (7785, 51212), (7812, 51035), (8260, 48267), (9145, 43596), (9765, 40828), (10207, 39060), (10380, 38409), (10620, 37541), (10726, 37170), (10899, 36580), (10974, 36330), (12110, 32922), (12390, 32178), (12803, 31140), (13020, 30621), (14532, 27435), (14868, 26815), (15570, 25606), (16089, 24780), (16461, 24220), (18165, 21948), (18290, 21798), (18585, 21452), (19530, 20414)]