68807740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{4211}}^1$

素因数の和:4282

約数の個数: 48

約数和(自身を含む): 155675520

約数和(自身を除く): 86867780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 43, 76, 86, 95, 172, 190, 215, 380, 430, 817, 860, 1634, 3268, 4085, 4211, 8170, 8422, 16340, 16844, 21055, 42110, 80009, 84220, 160018, 181073, 320036, 362146, 400045, 724292, 800090, 905365, 1600180, 1810730, 3440387, 3621460, 6880774, 13761548, 17201935, 34403870, 68807740]

約数ペア:

[(1, 68807740), (2, 34403870), (4, 17201935), (5, 13761548), (10, 6880774), (19, 3621460), (20, 3440387), (38, 1810730), (43, 1600180), (76, 905365), (86, 800090), (95, 724292), (172, 400045), (190, 362146), (215, 320036), (380, 181073), (430, 160018), (817, 84220), (860, 80009), (1634, 42110), (3268, 21055), (4085, 16844), (4211, 16340), (8170, 8422)]