2178810

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{563}}^1$

素因数の和:619

約数の個数: 48

約数和(自身を含む): 5806944

約数和(自身を除く): 3628134

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 43, 45, 86, 90, 129, 215, 258, 387, 430, 563, 645, 774, 1126, 1290, 1689, 1935, 2815, 3378, 3870, 5067, 5630, 8445, 10134, 16890, 24209, 25335, 48418, 50670, 72627, 121045, 145254, 217881, 242090, 363135, 435762, 726270, 1089405, 2178810]

約数ペア:

[(1, 2178810), (2, 1089405), (3, 726270), (5, 435762), (6, 363135), (9, 242090), (10, 217881), (15, 145254), (18, 121045), (30, 72627), (43, 50670), (45, 48418), (86, 25335), (90, 24209), (129, 16890), (215, 10134), (258, 8445), (387, 5630), (430, 5067), (563, 3870), (645, 3378), (774, 2815), (1126, 1935), (1290, 1689)]