20913670

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{1151}}^1$

素因数の和:1260

約数の個数: 32

約数和(自身を含む): 39813120

約数和(自身を除く): 18899450

約数列:

[1, 2, 5, 10, 23, 46, 79, 115, 158, 230, 395, 790, 1151, 1817, 2302, 3634, 5755, 9085, 11510, 18170, 26473, 52946, 90929, 132365, 181858, 264730, 454645, 909290, 2091367, 4182734, 10456835, 20913670]

約数ペア:

[(1, 20913670), (2, 10456835), (5, 4182734), (10, 2091367), (23, 909290), (46, 454645), (79, 264730), (115, 181858), (158, 132365), (230, 90929), (395, 52946), (790, 26473), (1151, 18170), (1817, 11510), (2302, 9085), (3634, 5755)]