20389610

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{70309}}^1$

素因数の和:70345

約数の個数: 16

約数和(自身を含む): 37967400

約数和(自身を除く): 17577790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 70309, 140618, 351545, 703090, 2038961, 4077922, 10194805, 20389610]

約数ペア:

[(1, 20389610), (2, 10194805), (5, 4077922), (10, 2038961), (29, 703090), (58, 351545), (145, 140618), (290, 70309)]