20499310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1151}}^1$

素因数の和:1308

約数の個数: 32

約数和(自身を含む): 40061952

約数和(自身を除く): 19562642

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 274, 685, 1151, 1370, 1781, 2302, 3562, 5755, 8905, 11510, 14963, 17810, 29926, 74815, 149630, 157687, 315374, 788435, 1576870, 2049931, 4099862, 10249655, 20499310]

約数ペア:

[(1, 20499310), (2, 10249655), (5, 4099862), (10, 2049931), (13, 1576870), (26, 788435), (65, 315374), (130, 157687), (137, 149630), (274, 74815), (685, 29926), (1151, 17810), (1370, 14963), (1781, 11510), (2302, 8905), (3562, 5755)]