56638480

素因数分解:

$2^4\times 5^1\times {\mathrm{707981}}^1$

素因数の和:707994

約数の個数: 20

約数和(自身を含む): 131684652

約数和(自身を除く): 75046172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 707981, 1415962, 2831924, 3539905, 5663848, 7079810, 11327696, 14159620, 28319240, 56638480]

約数ペア:

[(1, 56638480), (2, 28319240), (4, 14159620), (5, 11327696), (8, 7079810), (10, 5663848), (16, 3539905), (20, 2831924), (40, 1415962), (80, 707981)]