20102290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{647}}^1$

素因数の和:906

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 19088750

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 239, 478, 647, 1195, 1294, 2390, 3107, 3235, 6214, 6470, 8411, 15535, 16822, 31070, 42055, 84110, 154633, 309266, 773165, 1546330, 2010229, 4020458, 10051145, 20102290]

約数ペア:

[(1, 20102290), (2, 10051145), (5, 4020458), (10, 2010229), (13, 1546330), (26, 773165), (65, 309266), (130, 154633), (239, 84110), (478, 42055), (647, 31070), (1195, 16822), (1294, 15535), (2390, 8411), (3107, 6470), (3235, 6214)]