78136660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{6271}}^1$

素因数の和:6376

約数の個数: 48

約数和(自身を含む): 189665280

約数和(自身を除く): 111528620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 6271, 12460, 12542, 25084, 31355, 43897, 62710, 87794, 125420, 175588, 219485, 438970, 558119, 877940, 1116238, 2232476, 2790595, 3906833, 5581190, 7813666, 11162380, 15627332, 19534165, 39068330, 78136660]

約数ペア:

[(1, 78136660), (2, 39068330), (4, 19534165), (5, 15627332), (7, 11162380), (10, 7813666), (14, 5581190), (20, 3906833), (28, 2790595), (35, 2232476), (70, 1116238), (89, 877940), (140, 558119), (178, 438970), (356, 219485), (445, 175588), (623, 125420), (890, 87794), (1246, 62710), (1780, 43897), (2492, 31355), (3115, 25084), (6230, 12542), (6271, 12460)]