1621940225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{1109}}^1\times {\mathrm{3079}}^1$

素因数の和:4217

約数の個数: 24

約数和(自身を含む): 2119656000

約数和(自身を除く): 497715775

約数列:

[1, 5, 19, 25, 95, 475, 1109, 3079, 5545, 15395, 21071, 27725, 58501, 76975, 105355, 292505, 526775, 1462525, 3414611, 17073055, 64877609, 85365275, 324388045, 1621940225]

約数ペア:

[(1, 1621940225), (5, 324388045), (19, 85365275), (25, 64877609), (95, 17073055), (475, 3414611), (1109, 1462525), (3079, 526775), (5545, 292505), (15395, 105355), (21071, 76975), (27725, 58501)]