20017558730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{613471}}^1$

素因数の和:613742

約数の個数: 32

約数和(自身を含む): 38957925888

約数和(自身を除く): 18940367158

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 251, 502, 1255, 2510, 3263, 6526, 16315, 32630, 613471, 1226942, 3067355, 6134710, 7975123, 15950246, 39875615, 79751230, 153981221, 307962442, 769906105, 1539812210, 2001755873, 4003511746, 10008779365, 20017558730]

約数ペア:

[(1, 20017558730), (2, 10008779365), (5, 4003511746), (10, 2001755873), (13, 1539812210), (26, 769906105), (65, 307962442), (130, 153981221), (251, 79751230), (502, 39875615), (1255, 15950246), (2510, 7975123), (3263, 6134710), (6526, 3067355), (16315, 1226942), (32630, 613471)]