884660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:176

約数の個数: 48

約数和(自身を含む): 2177280

約数和(自身を除く): 1292620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 89, 140, 142, 178, 284, 355, 356, 445, 497, 623, 710, 890, 994, 1246, 1420, 1780, 1988, 2485, 2492, 3115, 4970, 6230, 6319, 9940, 12460, 12638, 25276, 31595, 44233, 63190, 88466, 126380, 176932, 221165, 442330, 884660]

約数ペア:

[(1, 884660), (2, 442330), (4, 221165), (5, 176932), (7, 126380), (10, 88466), (14, 63190), (20, 44233), (28, 31595), (35, 25276), (70, 12638), (71, 12460), (89, 9940), (140, 6319), (142, 6230), (178, 4970), (284, 3115), (355, 2492), (356, 2485), (445, 1988), (497, 1780), (623, 1420), (710, 1246), (890, 994)]