257360620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{68813}}^1$

素因数の和:68850

約数の個数: 48

約数和(自身を含む): 624280608

約数和(自身を除く): 366919988

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 68813, 137626, 275252, 344065, 688130, 756943, 1169821, 1376260, 1513886, 2339642, 3027772, 3784715, 4679284, 5849105, 7569430, 11698210, 12868031, 15138860, 23396420, 25736062, 51472124, 64340155, 128680310, 257360620]

約数ペア:

[(1, 257360620), (2, 128680310), (4, 64340155), (5, 51472124), (10, 25736062), (11, 23396420), (17, 15138860), (20, 12868031), (22, 11698210), (34, 7569430), (44, 5849105), (55, 4679284), (68, 3784715), (85, 3027772), (110, 2339642), (170, 1513886), (187, 1376260), (220, 1169821), (340, 756943), (374, 688130), (748, 344065), (935, 275252), (1870, 137626), (3740, 68813)]