128602280

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{379}}^1\times {\mathrm{499}}^1$

素因数の和:906

約数の個数: 64

約数和(自身を含む): 307800000

約数和(自身を除く): 179197720

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 379, 499, 680, 758, 998, 1516, 1895, 1996, 2495, 3032, 3790, 3992, 4990, 6443, 7580, 8483, 9980, 12886, 15160, 16966, 19960, 25772, 32215, 33932, 42415, 51544, 64430, 67864, 84830, 128860, 169660, 189121, 257720, 339320, 378242, 756484, 945605, 1512968, 1891210, 3215057, 3782420, 6430114, 7564840, 12860228, 16075285, 25720456, 32150570, 64301140, 128602280]

約数ペア:

[(1, 128602280), (2, 64301140), (4, 32150570), (5, 25720456), (8, 16075285), (10, 12860228), (17, 7564840), (20, 6430114), (34, 3782420), (40, 3215057), (68, 1891210), (85, 1512968), (136, 945605), (170, 756484), (340, 378242), (379, 339320), (499, 257720), (680, 189121), (758, 169660), (998, 128860), (1516, 84830), (1895, 67864), (1996, 64430), (2495, 51544), (3032, 42415), (3790, 33932), (3992, 32215), (4990, 25772), (6443, 19960), (7580, 16966), (8483, 15160), (9980, 12886)]