858744080

素因数分解:

$2^4\times 5^1\times {\mathrm{509}}^1\times {\mathrm{21089}}^1$

素因数の和:21611

約数の個数: 40

約数和(自身を含む): 2000597400

約数和(自身を除く): 1141853320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509, 1018, 2036, 2545, 4072, 5090, 8144, 10180, 20360, 21089, 40720, 42178, 84356, 105445, 168712, 210890, 337424, 421780, 843560, 1687120, 10734301, 21468602, 42937204, 53671505, 85874408, 107343010, 171748816, 214686020, 429372040, 858744080]

約数ペア:

[(1, 858744080), (2, 429372040), (4, 214686020), (5, 171748816), (8, 107343010), (10, 85874408), (16, 53671505), (20, 42937204), (40, 21468602), (80, 10734301), (509, 1687120), (1018, 843560), (2036, 421780), (2545, 337424), (4072, 210890), (5090, 168712), (8144, 105445), (10180, 84356), (20360, 42178), (21089, 40720)]