80980072

素因数分解:

$2^3\times {\mathrm{521}}^1\times {\mathrm{19429}}^1$

素因数の和:19956

約数の個数: 16

約数和(自身を含む): 152136900

約数和(自身を除く): 71156828

約数列:

[1, 2, 4, 8, 521, 1042, 2084, 4168, 19429, 38858, 77716, 155432, 10122509, 20245018, 40490036, 80980072]

約数ペア:

[(1, 80980072), (2, 40490036), (4, 20245018), (8, 10122509), (521, 155432), (1042, 77716), (2084, 38858), (4168, 19429)]