221528140

素因数分解:

$2^2\times 5^1\times {\mathrm{991}}^1\times {\mathrm{11177}}^1$

素因数の和:12177

約数の個数: 24

約数和(自身を含む): 465720192

約数和(自身を除く): 244192052

約数列:

[1, 2, 4, 5, 10, 20, 991, 1982, 3964, 4955, 9910, 11177, 19820, 22354, 44708, 55885, 111770, 223540, 11076407, 22152814, 44305628, 55382035, 110764070, 221528140]

約数ペア:

[(1, 221528140), (2, 110764070), (4, 55382035), (5, 44305628), (10, 22152814), (20, 11076407), (991, 223540), (1982, 111770), (3964, 55885), (4955, 44708), (9910, 22354), (11177, 19820)]