20576170

素因数分解:

$2^1\times 5^1\times {\mathrm{113}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:390

約数の個数: 32

約数和(自身を含む): 37920960

約数和(自身を除く): 17344790

約数列:

[1, 2, 5, 10, 113, 131, 139, 226, 262, 278, 565, 655, 695, 1130, 1310, 1390, 14803, 15707, 18209, 29606, 31414, 36418, 74015, 78535, 91045, 148030, 157070, 182090, 2057617, 4115234, 10288085, 20576170]

約数ペア:

[(1, 20576170), (2, 10288085), (5, 4115234), (10, 2057617), (113, 182090), (131, 157070), (139, 148030), (226, 91045), (262, 78535), (278, 74015), (565, 36418), (655, 31414), (695, 29606), (1130, 18209), (1310, 15707), (1390, 14803)]