66704020

素因数分解:

$2^2\times 5^1\times {\mathrm{3335201}}^1$

素因数の和:3335210

約数の個数: 12

約数和(自身を含む): 140078484

約数和(自身を除く): 73374464

約数列:

[1, 2, 4, 5, 10, 20, 3335201, 6670402, 13340804, 16676005, 33352010, 66704020]

約数ペア:

[(1, 66704020), (2, 33352010), (4, 16676005), (5, 13340804), (10, 6670402), (20, 3335201)]