20653230

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52957}}^1$

素因数の和:52980

約数の個数: 32

約数和(自身を含む): 53381664

約数和(自身を除く): 32728434

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52957, 105914, 158871, 264785, 317742, 529570, 688441, 794355, 1376882, 1588710, 2065323, 3442205, 4130646, 6884410, 10326615, 20653230]

約数ペア:

[(1, 20653230), (2, 10326615), (3, 6884410), (5, 4130646), (6, 3442205), (10, 2065323), (13, 1588710), (15, 1376882), (26, 794355), (30, 688441), (39, 529570), (65, 317742), (78, 264785), (130, 158871), (195, 105914), (390, 52957)]