15862220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72101}}^1$

素因数の和:72121

約数の個数: 24

約数和(自身を含む): 36339408

約数和(自身を除く): 20477188

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 72101, 144202, 288404, 360505, 721010, 793111, 1442020, 1586222, 3172444, 3965555, 7931110, 15862220]

約数ペア:

[(1, 15862220), (2, 7931110), (4, 3965555), (5, 3172444), (10, 1586222), (11, 1442020), (20, 793111), (22, 721010), (44, 360505), (55, 288404), (110, 144202), (220, 72101)]