72820475

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{32009}}^1$

素因数の和:32039

約数の個数: 24

約数和(自身を含む): 111138720

約数和(自身を除く): 38318245

約数列:

[1, 5, 7, 13, 25, 35, 65, 91, 175, 325, 455, 2275, 32009, 160045, 224063, 416117, 800225, 1120315, 2080585, 2912819, 5601575, 10402925, 14564095, 72820475]

約数ペア:

[(1, 72820475), (5, 14564095), (7, 10402925), (13, 5601575), (25, 2912819), (35, 2080585), (65, 1120315), (91, 800225), (175, 416117), (325, 224063), (455, 160045), (2275, 32009)]