240020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1091}}^1$

素因数の和:1111

約数の個数: 24

約数和(自身を含む): 550368

約数和(自身を除く): 310348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1091, 2182, 4364, 5455, 10910, 12001, 21820, 24002, 48004, 60005, 120010, 240020]

約数ペア:

[(1, 240020), (2, 120010), (4, 60005), (5, 48004), (10, 24002), (11, 21820), (20, 12001), (22, 10910), (44, 5455), (55, 4364), (110, 2182), (220, 1091)]