520977980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{635339}}^1$

素因数の和:635389

約数の個数: 24

約数和(自身を含む): 1120739760

約数和(自身を除く): 599761780

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 635339, 1270678, 2541356, 3176695, 6353390, 12706780, 26048899, 52097798, 104195596, 130244495, 260488990, 520977980]

約数ペア:

[(1, 520977980), (2, 260488990), (4, 130244495), (5, 104195596), (10, 52097798), (20, 26048899), (41, 12706780), (82, 6353390), (164, 3176695), (205, 2541356), (410, 1270678), (820, 635339)]