17961875

素因数分解:

$5^4\times {\mathrm{29}}^1\times {\mathrm{991}}^1$

素因数の和:1040

約数の個数: 20

約数和(自身を含む): 23242560

約数和(自身を除く): 5280685

約数列:

[1, 5, 25, 29, 125, 145, 625, 725, 991, 3625, 4955, 18125, 24775, 28739, 123875, 143695, 619375, 718475, 3592375, 17961875]

約数ペア:

[(1, 17961875), (5, 3592375), (25, 718475), (29, 619375), (125, 143695), (145, 123875), (625, 28739), (725, 24775), (991, 18125), (3625, 4955)]