20757440

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5897}}^1$

素因数の和:5925

約数の個数: 56

約数和(自身を含む): 53931312

約数和(自身を除く): 33173872

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 5897, 11794, 23588, 29485, 47176, 58970, 64867, 94352, 117940, 129734, 188704, 235880, 259468, 324335, 377408, 471760, 518936, 648670, 943520, 1037872, 1297340, 1887040, 2075744, 2594680, 4151488, 5189360, 10378720, 20757440]

約数ペア:

[(1, 20757440), (2, 10378720), (4, 5189360), (5, 4151488), (8, 2594680), (10, 2075744), (11, 1887040), (16, 1297340), (20, 1037872), (22, 943520), (32, 648670), (40, 518936), (44, 471760), (55, 377408), (64, 324335), (80, 259468), (88, 235880), (110, 188704), (160, 129734), (176, 117940), (220, 94352), (320, 64867), (352, 58970), (440, 47176), (704, 29485), (880, 23588), (1760, 11794), (3520, 5897)]