20406470

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{291521}}^1$

素因数の和:291535

約数の個数: 16

約数和(自身を含む): 41979168

約数和(自身を除く): 21572698

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 291521, 583042, 1457605, 2040647, 2915210, 4081294, 10203235, 20406470]

約数ペア:

[(1, 20406470), (2, 10203235), (5, 4081294), (7, 2915210), (10, 2040647), (14, 1457605), (35, 583042), (70, 291521)]