1579889660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{919}}^1\times {\mathrm{1999}}^1$

素因数の和:2970

約数の個数: 48

約数和(自身を含む): 3400320000

約数和(自身を除く): 1820430340

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 919, 1838, 1999, 3676, 3998, 4595, 7996, 9190, 9995, 18380, 19990, 39517, 39980, 79034, 85957, 158068, 171914, 197585, 343828, 395170, 429785, 790340, 859570, 1719140, 1837081, 3674162, 7348324, 9185405, 18370810, 36741620, 78994483, 157988966, 315977932, 394972415, 789944830, 1579889660]

約数ペア:

[(1, 1579889660), (2, 789944830), (4, 394972415), (5, 315977932), (10, 157988966), (20, 78994483), (43, 36741620), (86, 18370810), (172, 9185405), (215, 7348324), (430, 3674162), (860, 1837081), (919, 1719140), (1838, 859570), (1999, 790340), (3676, 429785), (3998, 395170), (4595, 343828), (7996, 197585), (9190, 171914), (9995, 158068), (18380, 85957), (19990, 79034), (39517, 39980)]