84485780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{997}}^1$

素因数の和:1248

約数の個数: 48

約数和(自身を含む): 187783680

約数和(自身を除く): 103297900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 223, 380, 446, 892, 997, 1115, 1994, 2230, 3988, 4237, 4460, 4985, 8474, 9970, 16948, 18943, 19940, 21185, 37886, 42370, 75772, 84740, 94715, 189430, 222331, 378860, 444662, 889324, 1111655, 2223310, 4224289, 4446620, 8448578, 16897156, 21121445, 42242890, 84485780]

約数ペア:

[(1, 84485780), (2, 42242890), (4, 21121445), (5, 16897156), (10, 8448578), (19, 4446620), (20, 4224289), (38, 2223310), (76, 1111655), (95, 889324), (190, 444662), (223, 378860), (380, 222331), (446, 189430), (892, 94715), (997, 84740), (1115, 75772), (1994, 42370), (2230, 37886), (3988, 21185), (4237, 19940), (4460, 18943), (4985, 16948), (8474, 9970)]