128575760

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{94541}}^1$

素因数の和:94571

約数の個数: 40

約数和(自身を含む): 316526616

約数和(自身を除く): 187950856

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 94541, 189082, 378164, 472705, 756328, 945410, 1512656, 1607197, 1890820, 3214394, 3781640, 6428788, 7563280, 8035985, 12857576, 16071970, 25715152, 32143940, 64287880, 128575760]

約数ペア:

[(1, 128575760), (2, 64287880), (4, 32143940), (5, 25715152), (8, 16071970), (10, 12857576), (16, 8035985), (17, 7563280), (20, 6428788), (34, 3781640), (40, 3214394), (68, 1890820), (80, 1607197), (85, 1512656), (136, 945410), (170, 756328), (272, 472705), (340, 378164), (680, 189082), (1360, 94541)]