80380625

素因数分解:

$5^4\times {\mathrm{13}}^2\times {\mathrm{761}}^1$

素因数の和:807

約数の個数: 30

約数和(自身を含む): 108907326

約数和(自身を除く): 28526701

約数列:

[1, 5, 13, 25, 65, 125, 169, 325, 625, 761, 845, 1625, 3805, 4225, 8125, 9893, 19025, 21125, 49465, 95125, 105625, 128609, 247325, 475625, 643045, 1236625, 3215225, 6183125, 16076125, 80380625]

約数ペア:

[(1, 80380625), (5, 16076125), (13, 6183125), (25, 3215225), (65, 1236625), (125, 643045), (169, 475625), (325, 247325), (625, 128609), (761, 105625), (845, 95125), (1625, 49465), (3805, 21125), (4225, 19025), (8125, 9893)]