196181820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7841}}^1$

素因数の和:7995

約数の個数: 72

約数和(自身を含む): 599442480

約数和(自身を除く): 403260660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 139, 180, 278, 417, 556, 695, 834, 1251, 1390, 1668, 2085, 2502, 2780, 4170, 5004, 6255, 7841, 8340, 12510, 15682, 23523, 25020, 31364, 39205, 47046, 70569, 78410, 94092, 117615, 141138, 156820, 235230, 282276, 352845, 470460, 705690, 1089899, 1411380, 2179798, 3269697, 4359596, 5449495, 6539394, 9809091, 10898990, 13078788, 16348485, 19618182, 21797980, 32696970, 39236364, 49045455, 65393940, 98090910, 196181820]

約数ペア:

[(1, 196181820), (2, 98090910), (3, 65393940), (4, 49045455), (5, 39236364), (6, 32696970), (9, 21797980), (10, 19618182), (12, 16348485), (15, 13078788), (18, 10898990), (20, 9809091), (30, 6539394), (36, 5449495), (45, 4359596), (60, 3269697), (90, 2179798), (139, 1411380), (180, 1089899), (278, 705690), (417, 470460), (556, 352845), (695, 282276), (834, 235230), (1251, 156820), (1390, 141138), (1668, 117615), (2085, 94092), (2502, 78410), (2780, 70569), (4170, 47046), (5004, 39205), (6255, 31364), (7841, 25020), (8340, 23523), (12510, 15682)]