18025760

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{997}}^1$

素因数の和:1125

約数の個数: 48

約数和(自身を含む): 43005816

約数和(自身を除く): 24980056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 452, 565, 904, 997, 1130, 1808, 1994, 2260, 3616, 3988, 4520, 4985, 7976, 9040, 9970, 15952, 18080, 19940, 31904, 39880, 79760, 112661, 159520, 225322, 450644, 563305, 901288, 1126610, 1802576, 2253220, 3605152, 4506440, 9012880, 18025760]

約数ペア:

[(1, 18025760), (2, 9012880), (4, 4506440), (5, 3605152), (8, 2253220), (10, 1802576), (16, 1126610), (20, 901288), (32, 563305), (40, 450644), (80, 225322), (113, 159520), (160, 112661), (226, 79760), (452, 39880), (565, 31904), (904, 19940), (997, 18080), (1130, 15952), (1808, 9970), (1994, 9040), (2260, 7976), (3616, 4985), (3988, 4520)]