80673220

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{51059}}^1$

素因数の和:51147

約数の個数: 24

約数和(自身を含む): 171561600

約数和(自身を除く): 90888380

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 51059, 102118, 204236, 255295, 510590, 1021180, 4033661, 8067322, 16134644, 20168305, 40336610, 80673220]

約数ペア:

[(1, 80673220), (2, 40336610), (4, 20168305), (5, 16134644), (10, 8067322), (20, 4033661), (79, 1021180), (158, 510590), (316, 255295), (395, 204236), (790, 102118), (1580, 51059)]