54557680

素因数分解:

$2^4\times 5^1\times {\mathrm{681971}}^1$

素因数の和:681984

約数の個数: 20

約数和(自身を含む): 126846792

約数和(自身を除く): 72289112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 681971, 1363942, 2727884, 3409855, 5455768, 6819710, 10911536, 13639420, 27278840, 54557680]

約数ペア:

[(1, 54557680), (2, 27278840), (4, 13639420), (5, 10911536), (8, 6819710), (10, 5455768), (16, 3409855), (20, 2727884), (40, 1363942), (80, 681971)]