420061025

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{887}}^1\times {\mathrm{997}}^1$

素因数の和:1913

約数の個数: 24

約数和(自身を含む): 549458880

約数和(自身を除く): 129397855

約数列:

[1, 5, 19, 25, 95, 475, 887, 997, 4435, 4985, 16853, 18943, 22175, 24925, 84265, 94715, 421325, 473575, 884339, 4421695, 16802441, 22108475, 84012205, 420061025]

約数ペア:

[(1, 420061025), (5, 84012205), (19, 22108475), (25, 16802441), (95, 4421695), (475, 884339), (887, 473575), (997, 421325), (4435, 94715), (4985, 84265), (16853, 24925), (18943, 22175)]