203077820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{21467}}^1$

素因数の和:21530

約数の個数: 48

約数和(自身を含む): 476074368

約数和(自身を除く): 272996548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 2365, 4730, 9460, 21467, 42934, 85868, 107335, 214670, 236137, 429340, 472274, 923081, 944548, 1180685, 1846162, 2361370, 3692324, 4615405, 4722740, 9230810, 10153891, 18461620, 20307782, 40615564, 50769455, 101538910, 203077820]

約数ペア:

[(1, 203077820), (2, 101538910), (4, 50769455), (5, 40615564), (10, 20307782), (11, 18461620), (20, 10153891), (22, 9230810), (43, 4722740), (44, 4615405), (55, 3692324), (86, 2361370), (110, 1846162), (172, 1180685), (215, 944548), (220, 923081), (430, 472274), (473, 429340), (860, 236137), (946, 214670), (1892, 107335), (2365, 85868), (4730, 42934), (9460, 21467)]