2087220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{809}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 5987520

約数和(自身を除く): 3900300

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 809, 860, 1290, 1618, 2427, 2580, 3236, 4045, 4854, 8090, 9708, 12135, 16180, 24270, 34787, 48540, 69574, 104361, 139148, 173935, 208722, 347870, 417444, 521805, 695740, 1043610, 2087220]

約数ペア:

[(1, 2087220), (2, 1043610), (3, 695740), (4, 521805), (5, 417444), (6, 347870), (10, 208722), (12, 173935), (15, 139148), (20, 104361), (30, 69574), (43, 48540), (60, 34787), (86, 24270), (129, 16180), (172, 12135), (215, 9708), (258, 8090), (430, 4854), (516, 4045), (645, 3236), (809, 2580), (860, 2427), (1290, 1618)]