31889680

素因数分解:

$2^4\times 5^1\times {\mathrm{398621}}^1$

素因数の和:398634

約数の個数: 20

約数和(自身を含む): 74143692

約数和(自身を除く): 42254012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 398621, 797242, 1594484, 1993105, 3188968, 3986210, 6377936, 7972420, 15944840, 31889680]

約数ペア:

[(1, 31889680), (2, 15944840), (4, 7972420), (5, 6377936), (8, 3986210), (10, 3188968), (16, 1993105), (20, 1594484), (40, 797242), (80, 398621)]