20016860

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4409}}^1$

素因数の和:4645

約数の個数: 24

約数和(自身を含む): 42230160

約数和(自身を除く): 22213300

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4409, 4540, 8818, 17636, 22045, 44090, 88180, 1000843, 2001686, 4003372, 5004215, 10008430, 20016860]

約数ペア:

[(1, 20016860), (2, 10008430), (4, 5004215), (5, 4003372), (10, 2001686), (20, 1000843), (227, 88180), (454, 44090), (908, 22045), (1135, 17636), (2270, 8818), (4409, 4540)]