20458060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{7691}}^1$

素因数の和:7726

約数の個数: 48

約数和(自身を含む): 51690240

約数和(自身を除く): 31232180

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 7691, 15382, 30764, 38455, 53837, 76910, 107674, 146129, 153820, 215348, 269185, 292258, 538370, 584516, 730645, 1022903, 1076740, 1461290, 2045806, 2922580, 4091612, 5114515, 10229030, 20458060]

約数ペア:

[(1, 20458060), (2, 10229030), (4, 5114515), (5, 4091612), (7, 2922580), (10, 2045806), (14, 1461290), (19, 1076740), (20, 1022903), (28, 730645), (35, 584516), (38, 538370), (70, 292258), (76, 269185), (95, 215348), (133, 153820), (140, 146129), (190, 107674), (266, 76910), (380, 53837), (532, 38455), (665, 30764), (1330, 15382), (2660, 7691)]