213130520

素因数分解:

$2^3\times 5^1\times {\mathrm{5328263}}^1$

素因数の和:5328274

約数の個数: 16

約数和(自身を含む): 479543760

約数和(自身を除く): 266413240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5328263, 10656526, 21313052, 26641315, 42626104, 53282630, 106565260, 213130520]

約数ペア:

[(1, 213130520), (2, 106565260), (4, 53282630), (5, 42626104), (8, 26641315), (10, 21313052), (20, 10656526), (40, 5328263)]