20191580125

素因数分解:

$5^3\times {\mathrm{641}}^1\times {\mathrm{252001}}^1$

素因数の和:252657

約数の個数: 16

約数和(自身を含む): 25238504304

約数和(自身を除く): 5046924179

約数列:

[1, 5, 25, 125, 641, 3205, 16025, 80125, 252001, 1260005, 6300025, 31500125, 161532641, 807663205, 4038316025, 20191580125]

約数ペア:

[(1, 20191580125), (5, 4038316025), (25, 807663205), (125, 161532641), (641, 31500125), (3205, 6300025), (16025, 1260005), (80125, 252001)]