64774375

素因数分解:

$5^4\times {\mathrm{61}}^1\times {\mathrm{1699}}^1$

素因数の和:1780

約数の個数: 20

約数和(自身を含む): 82317400

約数和(自身を除く): 17543025

約数列:

[1, 5, 25, 61, 125, 305, 625, 1525, 1699, 7625, 8495, 38125, 42475, 103639, 212375, 518195, 1061875, 2590975, 12954875, 64774375]

約数ペア:

[(1, 64774375), (5, 12954875), (25, 2590975), (61, 1061875), (125, 518195), (305, 212375), (625, 103639), (1525, 42475), (1699, 38125), (7625, 8495)]