489680

素因数分解:

$2^4\times 5^1\times {\mathrm{6121}}^1$

素因数の和:6134

約数の個数: 20

約数和(自身を含む): 1138692

約数和(自身を除く): 649012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 6121, 12242, 24484, 30605, 48968, 61210, 97936, 122420, 244840, 489680]

約数ペア:

[(1, 489680), (2, 244840), (4, 122420), (5, 97936), (8, 61210), (10, 48968), (16, 30605), (20, 24484), (40, 12242), (80, 6121)]