63889975

素因数分解:

$5^2\times {\mathrm{23}}^2\times {\mathrm{4831}}^1$

素因数の和:4887

約数の個数: 18

約数和(自身を含む): 82834976

約数和(自身を除く): 18945001

約数列:

[1, 5, 23, 25, 115, 529, 575, 2645, 4831, 13225, 24155, 111113, 120775, 555565, 2555599, 2777825, 12777995, 63889975]

約数ペア:

[(1, 63889975), (5, 12777995), (23, 2777825), (25, 2555599), (115, 555565), (529, 120775), (575, 111113), (2645, 24155), (4831, 13225)]