20644910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14437}}^1$

素因数の和:14468

約数の個数: 32

約数和(自身を含む): 43660512

約数和(自身を除く): 23015602

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14437, 28874, 72185, 144370, 158807, 187681, 317614, 375362, 794035, 938405, 1588070, 1876810, 2064491, 4128982, 10322455, 20644910]

約数ペア:

[(1, 20644910), (2, 10322455), (5, 4128982), (10, 2064491), (11, 1876810), (13, 1588070), (22, 938405), (26, 794035), (55, 375362), (65, 317614), (110, 187681), (130, 158807), (143, 144370), (286, 72185), (715, 28874), (1430, 14437)]