979991425

素因数分解:

$5^2\times 7^2\times {\mathrm{799993}}^1$

素因数の和:800017

約数の個数: 18

約数和(自身を含む): 1413589398

約数和(自身を除く): 433597973

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 799993, 3999965, 5599951, 19999825, 27999755, 39199657, 139998775, 195998285, 979991425]

約数ペア:

[(1, 979991425), (5, 195998285), (7, 139998775), (25, 39199657), (35, 27999755), (49, 19999825), (175, 5599951), (245, 3999965), (1225, 799993)]