87975280

素因数分解:

$2^4\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1103}}^1$

素因数の和:2113

約数の個数: 40

約数和(自身を含む): 204933312

約数和(自身を除く): 116958032

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 997, 1103, 1994, 2206, 3988, 4412, 4985, 5515, 7976, 8824, 9970, 11030, 15952, 17648, 19940, 22060, 39880, 44120, 79760, 88240, 1099691, 2199382, 4398764, 5498455, 8797528, 10996910, 17595056, 21993820, 43987640, 87975280]

約数ペア:

[(1, 87975280), (2, 43987640), (4, 21993820), (5, 17595056), (8, 10996910), (10, 8797528), (16, 5498455), (20, 4398764), (40, 2199382), (80, 1099691), (997, 88240), (1103, 79760), (1994, 44120), (2206, 39880), (3988, 22060), (4412, 19940), (4985, 17648), (5515, 15952), (7976, 11030), (8824, 9970)]