287221870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{16127}}^1$

素因数の和:16284

約数の個数: 32

約数和(自身を含む): 560867328

約数和(自身を除く): 273645458

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 274, 685, 1370, 1781, 3562, 8905, 16127, 17810, 32254, 80635, 161270, 209651, 419302, 1048255, 2096510, 2209399, 4418798, 11046995, 22093990, 28722187, 57444374, 143610935, 287221870]

約数ペア:

[(1, 287221870), (2, 143610935), (5, 57444374), (10, 28722187), (13, 22093990), (26, 11046995), (65, 4418798), (130, 2209399), (137, 2096510), (274, 1048255), (685, 419302), (1370, 209651), (1781, 161270), (3562, 80635), (8905, 32254), (16127, 17810)]