8485780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 19010880

約数和(自身を除く): 10525100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 137, 163, 190, 274, 326, 380, 548, 652, 685, 815, 1370, 1630, 2603, 2740, 3097, 3260, 5206, 6194, 10412, 12388, 13015, 15485, 22331, 26030, 30970, 44662, 52060, 61940, 89324, 111655, 223310, 424289, 446620, 848578, 1697156, 2121445, 4242890, 8485780]

約数ペア:

[(1, 8485780), (2, 4242890), (4, 2121445), (5, 1697156), (10, 848578), (19, 446620), (20, 424289), (38, 223310), (76, 111655), (95, 89324), (137, 61940), (163, 52060), (190, 44662), (274, 30970), (326, 26030), (380, 22331), (548, 15485), (652, 13015), (685, 12388), (815, 10412), (1370, 6194), (1630, 5206), (2603, 3260), (2740, 3097)]