81381245

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{64333}}^1$

素因数の和:64372

約数の個数: 16

約数和(自身を含む): 111169152

約数和(自身を除く): 29787907

約数列:

[1, 5, 11, 23, 55, 115, 253, 1265, 64333, 321665, 707663, 1479659, 3538315, 7398295, 16276249, 81381245]

約数ペア:

[(1, 81381245), (5, 16276249), (11, 7398295), (23, 3538315), (55, 1479659), (115, 707663), (253, 321665), (1265, 64333)]