680078680

素因数分解:

$2^3\times 5^1\times {\mathrm{307}}^1\times {\mathrm{55381}}^1$

素因数の和:55699

約数の個数: 32

約数和(自身を含む): 1535189040

約数和(自身を除く): 855110360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 307, 614, 1228, 1535, 2456, 3070, 6140, 12280, 55381, 110762, 221524, 276905, 443048, 553810, 1107620, 2215240, 17001967, 34003934, 68007868, 85009835, 136015736, 170019670, 340039340, 680078680]

約数ペア:

[(1, 680078680), (2, 340039340), (4, 170019670), (5, 136015736), (8, 85009835), (10, 68007868), (20, 34003934), (40, 17001967), (307, 2215240), (614, 1107620), (1228, 553810), (1535, 443048), (2456, 276905), (3070, 221524), (6140, 110762), (12280, 55381)]