20163220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13093}}^1$

素因数の和:13120

約数の個数: 48

約数和(自身を含む): 52795008

約数和(自身を除く): 32631788

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 13093, 26186, 52372, 65465, 91651, 130930, 144023, 183302, 261860, 288046, 366604, 458255, 576092, 720115, 916510, 1008161, 1440230, 1833020, 2016322, 2880460, 4032644, 5040805, 10081610, 20163220]

約数ペア:

[(1, 20163220), (2, 10081610), (4, 5040805), (5, 4032644), (7, 2880460), (10, 2016322), (11, 1833020), (14, 1440230), (20, 1008161), (22, 916510), (28, 720115), (35, 576092), (44, 458255), (55, 366604), (70, 288046), (77, 261860), (110, 183302), (140, 144023), (154, 130930), (220, 91651), (308, 65465), (385, 52372), (770, 26186), (1540, 13093)]