77638480

素因数分解:

$2^4\times 5^1\times {\mathrm{970481}}^1$

素因数の和:970494

約数の個数: 20

約数和(自身を含む): 180509652

約数和(自身を除く): 102871172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 970481, 1940962, 3881924, 4852405, 7763848, 9704810, 15527696, 19409620, 38819240, 77638480]

約数ペア:

[(1, 77638480), (2, 38819240), (4, 19409620), (5, 15527696), (8, 9704810), (10, 7763848), (16, 4852405), (20, 3881924), (40, 1940962), (80, 970481)]