78826280

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1$

素因数の和:319

約数の個数: 128

約数和(自身を含む): 208565280

約数和(自身を除く): 129739000

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 37, 40, 52, 65, 68, 74, 85, 104, 130, 136, 148, 170, 185, 221, 241, 260, 296, 340, 370, 442, 481, 482, 520, 629, 680, 740, 884, 962, 964, 1105, 1205, 1258, 1480, 1768, 1924, 1928, 2210, 2405, 2410, 2516, 3133, 3145, 3848, 4097, 4420, 4810, 4820, 5032, 6266, 6290, 8177, 8194, 8840, 8917, 9620, 9640, 12532, 12580, 15665, 16354, 16388, 17834, 19240, 20485, 25064, 25160, 31330, 32708, 32776, 35668, 40885, 40970, 44585, 53261, 62660, 65416, 71336, 81770, 81940, 89170, 106522, 115921, 125320, 151589, 163540, 163880, 178340, 213044, 231842, 266305, 303178, 327080, 356680, 426088, 463684, 532610, 579605, 606356, 757945, 927368, 1065220, 1159210, 1212712, 1515890, 1970657, 2130440, 2318420, 3031780, 3941314, 4636840, 6063560, 7882628, 9853285, 15765256, 19706570, 39413140, 78826280]

約数ペア:

[(1, 78826280), (2, 39413140), (4, 19706570), (5, 15765256), (8, 9853285), (10, 7882628), (13, 6063560), (17, 4636840), (20, 3941314), (26, 3031780), (34, 2318420), (37, 2130440), (40, 1970657), (52, 1515890), (65, 1212712), (68, 1159210), (74, 1065220), (85, 927368), (104, 757945), (130, 606356), (136, 579605), (148, 532610), (170, 463684), (185, 426088), (221, 356680), (241, 327080), (260, 303178), (296, 266305), (340, 231842), (370, 213044), (442, 178340), (481, 163880), (482, 163540), (520, 151589), (629, 125320), (680, 115921), (740, 106522), (884, 89170), (962, 81940), (964, 81770), (1105, 71336), (1205, 65416), (1258, 62660), (1480, 53261), (1768, 44585), (1924, 40970), (1928, 40885), (2210, 35668), (2405, 32776), (2410, 32708), (2516, 31330), (3133, 25160), (3145, 25064), (3848, 20485), (4097, 19240), (4420, 17834), (4810, 16388), (4820, 16354), (5032, 15665), (6266, 12580), (6290, 12532), (8177, 9640), (8194, 9620), (8840, 8917)]