15191875

素因数分解:

$5^4\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:352

約数の個数: 20

約数和(自身を含む): 19243840

約数和(自身を除く): 4051965

約数列:

[1, 5, 25, 109, 125, 223, 545, 625, 1115, 2725, 5575, 13625, 24307, 27875, 68125, 121535, 139375, 607675, 3038375, 15191875]

約数ペア:

[(1, 15191875), (5, 3038375), (25, 607675), (109, 139375), (125, 121535), (223, 68125), (545, 27875), (625, 24307), (1115, 13625), (2725, 5575)]