259709920

素因数分解:

$2^5\times 5^1\times {\mathrm{127}}^1\times {\mathrm{12781}}^1$

素因数の和:12923

約数の個数: 48

約数和(自身を含む): 618444288

約数和(自身を除く): 358734368

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 127, 160, 254, 508, 635, 1016, 1270, 2032, 2540, 4064, 5080, 10160, 12781, 20320, 25562, 51124, 63905, 102248, 127810, 204496, 255620, 408992, 511240, 1022480, 1623187, 2044960, 3246374, 6492748, 8115935, 12985496, 16231870, 25970992, 32463740, 51941984, 64927480, 129854960, 259709920]

約数ペア:

[(1, 259709920), (2, 129854960), (4, 64927480), (5, 51941984), (8, 32463740), (10, 25970992), (16, 16231870), (20, 12985496), (32, 8115935), (40, 6492748), (80, 3246374), (127, 2044960), (160, 1623187), (254, 1022480), (508, 511240), (635, 408992), (1016, 255620), (1270, 204496), (2032, 127810), (2540, 102248), (4064, 63905), (5080, 51124), (10160, 25562), (12781, 20320)]