43987640

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1103}}^1$

素因数の和:2111

約数の個数: 32

約数和(自身を含む): 99161280

約数和(自身を除く): 55173640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1103, 1994, 2206, 3988, 4412, 4985, 5515, 7976, 8824, 9970, 11030, 19940, 22060, 39880, 44120, 1099691, 2199382, 4398764, 5498455, 8797528, 10996910, 21993820, 43987640]

約数ペア:

[(1, 43987640), (2, 21993820), (4, 10996910), (5, 8797528), (8, 5498455), (10, 4398764), (20, 2199382), (40, 1099691), (997, 44120), (1103, 39880), (1994, 22060), (2206, 19940), (3988, 11030), (4412, 9970), (4985, 8824), (5515, 7976)]