54425720

素因数分解:

$2^3\times 5^1\times {\mathrm{991}}^1\times {\mathrm{1373}}^1$

素因数の和:2375

約数の個数: 32

約数和(自身を含む): 122670720

約数和(自身を除く): 68245000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 991, 1373, 1982, 2746, 3964, 4955, 5492, 6865, 7928, 9910, 10984, 13730, 19820, 27460, 39640, 54920, 1360643, 2721286, 5442572, 6803215, 10885144, 13606430, 27212860, 54425720]

約数ペア:

[(1, 54425720), (2, 27212860), (4, 13606430), (5, 10885144), (8, 6803215), (10, 5442572), (20, 2721286), (40, 1360643), (991, 54920), (1373, 39640), (1982, 27460), (2746, 19820), (3964, 13730), (4955, 10984), (5492, 9910), (6865, 7928)]