15662020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71191}}^1$

素因数の和:71211

約数の個数: 24

約数和(自身を含む): 35880768

約数和(自身を除く): 20218748

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 71191, 142382, 284764, 355955, 711910, 783101, 1423820, 1566202, 3132404, 3915505, 7831010, 15662020]

約数ペア:

[(1, 15662020), (2, 7831010), (4, 3915505), (5, 3132404), (10, 1566202), (11, 1423820), (20, 783101), (22, 711910), (44, 355955), (55, 284764), (110, 142382), (220, 71191)]