81563020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{52963}}^1$

素因数の和:52990

約数の個数: 48

約数和(自身を含む): 213550848

約数和(自身を除く): 131987828

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, 52963, 105926, 211852, 264815, 370741, 529630, 582593, 741482, 1059260, 1165186, 1482964, 1853705, 2330372, 2912965, 3707410, 4078151, 5825930, 7414820, 8156302, 11651860, 16312604, 20390755, 40781510, 81563020]

約数ペア:

[(1, 81563020), (2, 40781510), (4, 20390755), (5, 16312604), (7, 11651860), (10, 8156302), (11, 7414820), (14, 5825930), (20, 4078151), (22, 3707410), (28, 2912965), (35, 2330372), (44, 1853705), (55, 1482964), (70, 1165186), (77, 1059260), (110, 741482), (140, 582593), (154, 529630), (220, 370741), (308, 264815), (385, 211852), (770, 105926), (1540, 52963)]