25339640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15451}}^1$

素因数の和:15503

約数の個数: 32

約数和(自身を含む): 58408560

約数和(自身を除く): 33068920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 15451, 30902, 61804, 77255, 123608, 154510, 309020, 618040, 633491, 1266982, 2533964, 3167455, 5067928, 6334910, 12669820, 25339640]

約数ペア:

[(1, 25339640), (2, 12669820), (4, 6334910), (5, 5067928), (8, 3167455), (10, 2533964), (20, 1266982), (40, 633491), (41, 618040), (82, 309020), (164, 154510), (205, 123608), (328, 77255), (410, 61804), (820, 30902), (1640, 15451)]