20475125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{14891}}^1$

素因数の和:14917

約数の個数: 16

約数和(自身を含む): 27877824

約数和(自身を除く): 7402699

約数列:

[1, 5, 11, 25, 55, 125, 275, 1375, 14891, 74455, 163801, 372275, 819005, 1861375, 4095025, 20475125]

約数ペア:

[(1, 20475125), (5, 4095025), (11, 1861375), (25, 819005), (55, 372275), (125, 163801), (275, 74455), (1375, 14891)]