128517240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{181}}^1$

素因数の和:353

約数の個数: 128

約数和(自身を含む): 398099520

約数和(自身を除く): 269582280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 97, 120, 122, 181, 183, 194, 244, 291, 305, 362, 366, 388, 485, 488, 543, 582, 610, 724, 732, 776, 905, 915, 970, 1086, 1164, 1220, 1448, 1455, 1464, 1810, 1830, 1940, 2172, 2328, 2440, 2715, 2910, 3620, 3660, 3880, 4344, 5430, 5820, 5917, 7240, 7320, 10860, 11041, 11640, 11834, 17557, 17751, 21720, 22082, 23668, 29585, 33123, 35114, 35502, 44164, 47336, 52671, 55205, 59170, 66246, 70228, 71004, 87785, 88328, 88755, 105342, 110410, 118340, 132492, 140456, 142008, 165615, 175570, 177510, 210684, 220820, 236680, 263355, 264984, 331230, 351140, 355020, 421368, 441640, 526710, 662460, 702280, 710040, 1053420, 1070977, 1324920, 2106840, 2141954, 3212931, 4283908, 5354885, 6425862, 8567816, 10709770, 12851724, 16064655, 21419540, 25703448, 32129310, 42839080, 64258620, 128517240]

約数ペア:

[(1, 128517240), (2, 64258620), (3, 42839080), (4, 32129310), (5, 25703448), (6, 21419540), (8, 16064655), (10, 12851724), (12, 10709770), (15, 8567816), (20, 6425862), (24, 5354885), (30, 4283908), (40, 3212931), (60, 2141954), (61, 2106840), (97, 1324920), (120, 1070977), (122, 1053420), (181, 710040), (183, 702280), (194, 662460), (244, 526710), (291, 441640), (305, 421368), (362, 355020), (366, 351140), (388, 331230), (485, 264984), (488, 263355), (543, 236680), (582, 220820), (610, 210684), (724, 177510), (732, 175570), (776, 165615), (905, 142008), (915, 140456), (970, 132492), (1086, 118340), (1164, 110410), (1220, 105342), (1448, 88755), (1455, 88328), (1464, 87785), (1810, 71004), (1830, 70228), (1940, 66246), (2172, 59170), (2328, 55205), (2440, 52671), (2715, 47336), (2910, 44164), (3620, 35502), (3660, 35114), (3880, 33123), (4344, 29585), (5430, 23668), (5820, 22082), (5917, 21720), (7240, 17751), (7320, 17557), (10860, 11834), (11041, 11640)]