80182640

素因数分解:

$2^4\times 5^1\times {\mathrm{53}}^1\times {\mathrm{18911}}^1$

素因数の和:18977

約数の個数: 40

約数和(自身を含む): 189952128

約数和(自身を除く): 109769488

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 53, 80, 106, 212, 265, 424, 530, 848, 1060, 2120, 4240, 18911, 37822, 75644, 94555, 151288, 189110, 302576, 378220, 756440, 1002283, 1512880, 2004566, 4009132, 5011415, 8018264, 10022830, 16036528, 20045660, 40091320, 80182640]

約数ペア:

[(1, 80182640), (2, 40091320), (4, 20045660), (5, 16036528), (8, 10022830), (10, 8018264), (16, 5011415), (20, 4009132), (40, 2004566), (53, 1512880), (80, 1002283), (106, 756440), (212, 378220), (265, 302576), (424, 189110), (530, 151288), (848, 94555), (1060, 75644), (2120, 37822), (4240, 18911)]