19663125

素因数分解:

$3^1\times 5^4\times {\mathrm{10487}}^1$

素因数の和:10510

約数の個数: 20

約数和(自身を含む): 32764512

約数和(自身を除く): 13101387

約数列:

[1, 3, 5, 15, 25, 75, 125, 375, 625, 1875, 10487, 31461, 52435, 157305, 262175, 786525, 1310875, 3932625, 6554375, 19663125]

約数ペア:

[(1, 19663125), (3, 6554375), (5, 3932625), (15, 1310875), (25, 786525), (75, 262175), (125, 157305), (375, 52435), (625, 31461), (1875, 10487)]