25805020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41621}}^1$

素因数の和:41661

約数の個数: 24

約数和(自身を含む): 55939968

約数和(自身を除く): 30134948

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 41621, 83242, 166484, 208105, 416210, 832420, 1290251, 2580502, 5161004, 6451255, 12902510, 25805020]

約数ペア:

[(1, 25805020), (2, 12902510), (4, 6451255), (5, 5161004), (10, 2580502), (20, 1290251), (31, 832420), (62, 416210), (124, 208105), (155, 166484), (310, 83242), (620, 41621)]