55189840

素因数分解:

$2^4\times 5^1\times {\mathrm{689873}}^1$

素因数の和:689886

約数の個数: 20

約数和(自身を含む): 128316564

約数和(自身を除く): 73126724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 689873, 1379746, 2759492, 3449365, 5518984, 6898730, 11037968, 13797460, 27594920, 55189840]

約数ペア:

[(1, 55189840), (2, 27594920), (4, 13797460), (5, 11037968), (8, 6898730), (10, 5518984), (16, 3449365), (20, 2759492), (40, 1379746), (80, 689873)]