51306020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{36131}}^1$

素因数の和:36211

約数の個数: 24

約数和(自身を含む): 109263168

約数和(自身を除く): 57957148

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 36131, 72262, 144524, 180655, 361310, 722620, 2565301, 5130602, 10261204, 12826505, 25653010, 51306020]

約数ペア:

[(1, 51306020), (2, 25653010), (4, 12826505), (5, 10261204), (10, 5130602), (20, 2565301), (71, 722620), (142, 361310), (284, 180655), (355, 144524), (710, 72262), (1420, 36131)]