40889840

素因数分解:

$2^4\times 5^1\times {\mathrm{511123}}^1$

素因数の和:511136

約数の個数: 20

約数和(自身を含む): 95069064

約数和(自身を除く): 54179224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 511123, 1022246, 2044492, 2555615, 4088984, 5111230, 8177968, 10222460, 20444920, 40889840]

約数ペア:

[(1, 40889840), (2, 20444920), (4, 10222460), (5, 8177968), (8, 5111230), (10, 4088984), (16, 2555615), (20, 2044492), (40, 1022246), (80, 511123)]