128632920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{82457}}^1$

素因数の和:82484

約数の個数: 64

約数和(自身を含む): 415588320

約数和(自身を除く): 286955400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 82457, 164914, 247371, 329828, 412285, 494742, 659656, 824570, 989484, 1071941, 1236855, 1649140, 1978968, 2143882, 2473710, 3215823, 3298280, 4287764, 4947420, 5359705, 6431646, 8575528, 9894840, 10719410, 12863292, 16079115, 21438820, 25726584, 32158230, 42877640, 64316460, 128632920]

約数ペア:

[(1, 128632920), (2, 64316460), (3, 42877640), (4, 32158230), (5, 25726584), (6, 21438820), (8, 16079115), (10, 12863292), (12, 10719410), (13, 9894840), (15, 8575528), (20, 6431646), (24, 5359705), (26, 4947420), (30, 4287764), (39, 3298280), (40, 3215823), (52, 2473710), (60, 2143882), (65, 1978968), (78, 1649140), (104, 1236855), (120, 1071941), (130, 989484), (156, 824570), (195, 659656), (260, 494742), (312, 412285), (390, 329828), (520, 247371), (780, 164914), (1560, 82457)]