156638480

素因数分解:

$2^4\times 5^1\times {\mathrm{1957981}}^1$

素因数の和:1957994

約数の個数: 20

約数和(自身を含む): 364184652

約数和(自身を除く): 207546172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1957981, 3915962, 7831924, 9789905, 15663848, 19579810, 31327696, 39159620, 78319240, 156638480]

約数ペア:

[(1, 156638480), (2, 78319240), (4, 39159620), (5, 31327696), (8, 19579810), (10, 15663848), (16, 9789905), (20, 7831924), (40, 3915962), (80, 1957981)]