67798960

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{19709}}^1$

素因数の和:19765

約数の個数: 40

約数和(自身を含む): 161306640

約数和(自身を除く): 93507680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 19709, 39418, 78836, 98545, 157672, 197090, 315344, 394180, 788360, 847487, 1576720, 1694974, 3389948, 4237435, 6779896, 8474870, 13559792, 16949740, 33899480, 67798960]

約数ペア:

[(1, 67798960), (2, 33899480), (4, 16949740), (5, 13559792), (8, 8474870), (10, 6779896), (16, 4237435), (20, 3389948), (40, 1694974), (43, 1576720), (80, 847487), (86, 788360), (172, 394180), (215, 315344), (344, 197090), (430, 157672), (688, 98545), (860, 78836), (1720, 39418), (3440, 19709)]