1640581025

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{151}}^1\times {\mathrm{6121}}^1$

素因数の和:6353

約数の個数: 24

約数和(自身を含む): 2076974208

約数和(自身を除く): 436393183

約数列:

[1, 5, 25, 71, 151, 355, 755, 1775, 3775, 6121, 10721, 30605, 53605, 153025, 268025, 434591, 924271, 2172955, 4621355, 10864775, 23106775, 65623241, 328116205, 1640581025]

約数ペア:

[(1, 1640581025), (5, 328116205), (25, 65623241), (71, 23106775), (151, 10864775), (355, 4621355), (755, 2172955), (1775, 924271), (3775, 434591), (6121, 268025), (10721, 153025), (30605, 53605)]