19522960

素因数分解:

$2^4\times 5^1\times {\mathrm{277}}^1\times {\mathrm{881}}^1$

素因数の和:1171

約数の個数: 40

約数和(自身を含む): 45606456

約数和(自身を除く): 26083496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277, 554, 881, 1108, 1385, 1762, 2216, 2770, 3524, 4405, 4432, 5540, 7048, 8810, 11080, 14096, 17620, 22160, 35240, 70480, 244037, 488074, 976148, 1220185, 1952296, 2440370, 3904592, 4880740, 9761480, 19522960]

約数ペア:

[(1, 19522960), (2, 9761480), (4, 4880740), (5, 3904592), (8, 2440370), (10, 1952296), (16, 1220185), (20, 976148), (40, 488074), (80, 244037), (277, 70480), (554, 35240), (881, 22160), (1108, 17620), (1385, 14096), (1762, 11080), (2216, 8810), (2770, 7048), (3524, 5540), (4405, 4432)]