20378770

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20177}}^1$

素因数の和:20285

約数の個数: 16

約数和(自身を含む): 37046808

約数和(自身を除く): 16668038

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 20177, 40354, 100885, 201770, 2037877, 4075754, 10189385, 20378770]

約数ペア:

[(1, 20378770), (2, 10189385), (5, 4075754), (10, 2037877), (101, 201770), (202, 100885), (505, 40354), (1010, 20177)]