19716490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{2531}}^1$

素因数の和:2598

約数の個数: 32

約数和(自身を含む): 38283840

約数和(自身を除く): 18567350

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 410, 779, 1558, 2531, 3895, 5062, 7790, 12655, 25310, 48089, 96178, 103771, 207542, 240445, 480890, 518855, 1037710, 1971649, 3943298, 9858245, 19716490]

約数ペア:

[(1, 19716490), (2, 9858245), (5, 3943298), (10, 1971649), (19, 1037710), (38, 518855), (41, 480890), (82, 240445), (95, 207542), (190, 103771), (205, 96178), (410, 48089), (779, 25310), (1558, 12655), (2531, 7790), (3895, 5062)]