261798910

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{811}}^1\times {\mathrm{1699}}^1$

素因数の和:2536

約数の個数: 32

約数和(自身を含む): 496944000

約数和(自身を除く): 235145090

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 811, 1622, 1699, 3398, 4055, 8110, 8495, 15409, 16990, 30818, 32281, 64562, 77045, 154090, 161405, 322810, 1377889, 2755778, 6889445, 13778890, 26179891, 52359782, 130899455, 261798910]

約数ペア:

[(1, 261798910), (2, 130899455), (5, 52359782), (10, 26179891), (19, 13778890), (38, 6889445), (95, 2755778), (190, 1377889), (811, 322810), (1622, 161405), (1699, 154090), (3398, 77045), (4055, 64562), (8110, 32281), (8495, 30818), (15409, 16990)]