81791990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{3083}}^1$

素因数の和:3476

約数の個数: 32

約数和(自身を含む): 168756480

約数和(自身を除く): 86964490

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 379, 758, 1895, 2653, 3083, 3790, 5306, 6166, 13265, 15415, 21581, 26530, 30830, 43162, 107905, 215810, 1168457, 2336914, 5842285, 8179199, 11684570, 16358398, 40895995, 81791990]

約数ペア:

[(1, 81791990), (2, 40895995), (5, 16358398), (7, 11684570), (10, 8179199), (14, 5842285), (35, 2336914), (70, 1168457), (379, 215810), (758, 107905), (1895, 43162), (2653, 30830), (3083, 26530), (3790, 21581), (5306, 15415), (6166, 13265)]