249680

素因数分解:

$2^4\times 5^1\times {\mathrm{3121}}^1$

素因数の和:3134

約数の個数: 20

約数和(自身を含む): 580692

約数和(自身を除く): 331012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3121, 6242, 12484, 15605, 24968, 31210, 49936, 62420, 124840, 249680]

約数ペア:

[(1, 249680), (2, 124840), (4, 62420), (5, 49936), (8, 31210), (10, 24968), (16, 15605), (20, 12484), (40, 6242), (80, 3121)]