1689680

素因数分解:

$2^4\times 5^1\times {\mathrm{21121}}^1$

素因数の和:21134

約数の個数: 20

約数和(自身を含む): 3928692

約数和(自身を除く): 2239012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21121, 42242, 84484, 105605, 168968, 211210, 337936, 422420, 844840, 1689680]

約数ペア:

[(1, 1689680), (2, 844840), (4, 422420), (5, 337936), (8, 211210), (10, 168968), (16, 105605), (20, 84484), (40, 42242), (80, 21121)]