78672420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{613}}^1$

素因数の和:682

約数の個数: 144

約数和(自身を含む): 257467392

約数和(自身を除く): 178794972

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 31, 36, 45, 46, 60, 62, 69, 90, 92, 93, 115, 124, 138, 155, 180, 186, 207, 230, 276, 279, 310, 345, 372, 414, 460, 465, 558, 613, 620, 690, 713, 828, 930, 1035, 1116, 1226, 1380, 1395, 1426, 1839, 1860, 2070, 2139, 2452, 2790, 2852, 3065, 3565, 3678, 4140, 4278, 5517, 5580, 6130, 6417, 7130, 7356, 8556, 9195, 10695, 11034, 12260, 12834, 14099, 14260, 18390, 19003, 21390, 22068, 25668, 27585, 28198, 32085, 36780, 38006, 42297, 42780, 55170, 56396, 57009, 64170, 70495, 76012, 84594, 95015, 110340, 114018, 126891, 128340, 140990, 169188, 171027, 190030, 211485, 228036, 253782, 281980, 285045, 342054, 380060, 422970, 437069, 507564, 570090, 634455, 684108, 845940, 855135, 874138, 1140180, 1268910, 1311207, 1710270, 1748276, 2185345, 2537820, 2622414, 3420540, 3933621, 4370690, 5244828, 6556035, 7867242, 8741380, 13112070, 15734484, 19668105, 26224140, 39336210, 78672420]

約数ペア:

[(1, 78672420), (2, 39336210), (3, 26224140), (4, 19668105), (5, 15734484), (6, 13112070), (9, 8741380), (10, 7867242), (12, 6556035), (15, 5244828), (18, 4370690), (20, 3933621), (23, 3420540), (30, 2622414), (31, 2537820), (36, 2185345), (45, 1748276), (46, 1710270), (60, 1311207), (62, 1268910), (69, 1140180), (90, 874138), (92, 855135), (93, 845940), (115, 684108), (124, 634455), (138, 570090), (155, 507564), (180, 437069), (186, 422970), (207, 380060), (230, 342054), (276, 285045), (279, 281980), (310, 253782), (345, 228036), (372, 211485), (414, 190030), (460, 171027), (465, 169188), (558, 140990), (613, 128340), (620, 126891), (690, 114018), (713, 110340), (828, 95015), (930, 84594), (1035, 76012), (1116, 70495), (1226, 64170), (1380, 57009), (1395, 56396), (1426, 55170), (1839, 42780), (1860, 42297), (2070, 38006), (2139, 36780), (2452, 32085), (2790, 28198), (2852, 27585), (3065, 25668), (3565, 22068), (3678, 21390), (4140, 19003), (4278, 18390), (5517, 14260), (5580, 14099), (6130, 12834), (6417, 12260), (7130, 11034), (7356, 10695), (8556, 9195)]