20575040

素因数分解:

$2^6\times 5^1\times {\mathrm{113}}^1\times {\mathrm{569}}^1$

素因数の和:699

約数の個数: 56

約数和(自身を含む): 49514760

約数和(自身を除く): 28939720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 113, 160, 226, 320, 452, 565, 569, 904, 1130, 1138, 1808, 2260, 2276, 2845, 3616, 4520, 4552, 5690, 7232, 9040, 9104, 11380, 18080, 18208, 22760, 36160, 36416, 45520, 64297, 91040, 128594, 182080, 257188, 321485, 514376, 642970, 1028752, 1285940, 2057504, 2571880, 4115008, 5143760, 10287520, 20575040]

約数ペア:

[(1, 20575040), (2, 10287520), (4, 5143760), (5, 4115008), (8, 2571880), (10, 2057504), (16, 1285940), (20, 1028752), (32, 642970), (40, 514376), (64, 321485), (80, 257188), (113, 182080), (160, 128594), (226, 91040), (320, 64297), (452, 45520), (565, 36416), (569, 36160), (904, 22760), (1130, 18208), (1138, 18080), (1808, 11380), (2260, 9104), (2276, 9040), (2845, 7232), (3616, 5690), (4520, 4552)]