15398020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{69991}}^1$

素因数の和:70011

約数の個数: 24

約数和(自身を含む): 35275968

約数和(自身を除く): 19877948

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 69991, 139982, 279964, 349955, 699910, 769901, 1399820, 1539802, 3079604, 3849505, 7699010, 15398020]

約数ペア:

[(1, 15398020), (2, 7699010), (4, 3849505), (5, 3079604), (10, 1539802), (11, 1399820), (20, 769901), (22, 699910), (44, 349955), (55, 279964), (110, 139982), (220, 69991)]