20950480

素因数分解:

$2^4\times 5^1\times {\mathrm{261881}}^1$

素因数の和:261894

約数の個数: 20

約数和(自身を含む): 48710052

約数和(自身を除く): 27759572

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 261881, 523762, 1047524, 1309405, 2095048, 2618810, 4190096, 5237620, 10475240, 20950480]

約数ペア:

[(1, 20950480), (2, 10475240), (4, 5237620), (5, 4190096), (8, 2618810), (10, 2095048), (16, 1309405), (20, 1047524), (40, 523762), (80, 261881)]