66825140

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{13001}}^1$

素因数の和:13267

約数の個数: 24

約数和(自身を含む): 140889672

約数和(自身を除く): 74064532

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 13001, 26002, 52004, 65005, 130010, 260020, 3341257, 6682514, 13365028, 16706285, 33412570, 66825140]

約数ペア:

[(1, 66825140), (2, 33412570), (4, 16706285), (5, 13365028), (10, 6682514), (20, 3341257), (257, 260020), (514, 130010), (1028, 65005), (1285, 52004), (2570, 26002), (5140, 13001)]