2173940

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1489}}^1$

素因数の和:1571

約数の個数: 24

約数和(自身を含む): 4630920

約数和(自身を除く): 2456980

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 1489, 2978, 5956, 7445, 14890, 29780, 108697, 217394, 434788, 543485, 1086970, 2173940]

約数ペア:

[(1, 2173940), (2, 1086970), (4, 543485), (5, 434788), (10, 217394), (20, 108697), (73, 29780), (146, 14890), (292, 7445), (365, 5956), (730, 2978), (1460, 1489)]