19901980798

素因数分解:

$2^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{397}}^1\times {\mathrm{13933}}^1$

素因数の和:14596

約数の個数: 32

約数和(自身を含む): 34339172544

約数和(自身を除く): 14437191746

約数列:

[1, 2, 7, 14, 257, 397, 514, 794, 1799, 2779, 3598, 5558, 13933, 27866, 97531, 102029, 195062, 204058, 714203, 1428406, 3580781, 5531401, 7161562, 11062802, 25065467, 38719807, 50130934, 77439614, 1421570057, 2843140114, 9950990399, 19901980798]

約数ペア:

[(1, 19901980798), (2, 9950990399), (7, 2843140114), (14, 1421570057), (257, 77439614), (397, 50130934), (514, 38719807), (794, 25065467), (1799, 11062802), (2779, 7161562), (3598, 5531401), (5558, 3580781), (13933, 1428406), (27866, 714203), (97531, 204058), (102029, 195062)]