20276680

素因数分解:

$2^3\times 5^1\times {\mathrm{541}}^1\times {\mathrm{937}}^1$

素因数の和:1489

約数の個数: 32

約数和(自身を含む): 45755640

約数和(自身を除く): 25478960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 541, 937, 1082, 1874, 2164, 2705, 3748, 4328, 4685, 5410, 7496, 9370, 10820, 18740, 21640, 37480, 506917, 1013834, 2027668, 2534585, 4055336, 5069170, 10138340, 20276680]

約数ペア:

[(1, 20276680), (2, 10138340), (4, 5069170), (5, 4055336), (8, 2534585), (10, 2027668), (20, 1013834), (40, 506917), (541, 37480), (937, 21640), (1082, 18740), (1874, 10820), (2164, 9370), (2705, 7496), (3748, 5410), (4328, 4685)]