64874225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{461}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 87020472

約数和(自身を除く): 22146247

約数列:

[1, 5, 13, 25, 65, 325, 433, 461, 2165, 2305, 5629, 5993, 10825, 11525, 28145, 29965, 140725, 149825, 199613, 998065, 2594969, 4990325, 12974845, 64874225]

約数ペア:

[(1, 64874225), (5, 12974845), (13, 4990325), (25, 2594969), (65, 998065), (325, 199613), (433, 149825), (461, 140725), (2165, 29965), (2305, 28145), (5629, 11525), (5993, 10825)]