56978020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{258991}}^1$

素因数の和:259011

約数の個数: 24

約数和(自身を含む): 130531968

約数和(自身を除く): 73553948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 258991, 517982, 1035964, 1294955, 2589910, 2848901, 5179820, 5697802, 11395604, 14244505, 28489010, 56978020]

約数ペア:

[(1, 56978020), (2, 28489010), (4, 14244505), (5, 11395604), (10, 5697802), (11, 5179820), (20, 2848901), (22, 2589910), (44, 1294955), (55, 1035964), (110, 517982), (220, 258991)]