15213620

素因数分解:

$2^2\times 5^1\times {\mathrm{173}}^1\times {\mathrm{4397}}^1$

素因数の和:4579

約数の個数: 24

約数和(自身を含む): 32140584

約数和(自身を除く): 16926964

約数列:

[1, 2, 4, 5, 10, 20, 173, 346, 692, 865, 1730, 3460, 4397, 8794, 17588, 21985, 43970, 87940, 760681, 1521362, 3042724, 3803405, 7606810, 15213620]

約数ペア:

[(1, 15213620), (2, 7606810), (4, 3803405), (5, 3042724), (10, 1521362), (20, 760681), (173, 87940), (346, 43970), (692, 21985), (865, 17588), (1730, 8794), (3460, 4397)]