20468880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{28429}}^1$

素因数の和:28448

約数の個数: 60

約数和(自身を含む): 68743740

約数和(自身を除く): 48274860

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 28429, 56858, 85287, 113716, 142145, 170574, 227432, 255861, 284290, 341148, 426435, 454864, 511722, 568580, 682296, 852870, 1023444, 1137160, 1279305, 1364592, 1705740, 2046888, 2274320, 2558610, 3411480, 4093776, 5117220, 6822960, 10234440, 20468880]

約数ペア:

[(1, 20468880), (2, 10234440), (3, 6822960), (4, 5117220), (5, 4093776), (6, 3411480), (8, 2558610), (9, 2274320), (10, 2046888), (12, 1705740), (15, 1364592), (16, 1279305), (18, 1137160), (20, 1023444), (24, 852870), (30, 682296), (36, 568580), (40, 511722), (45, 454864), (48, 426435), (60, 341148), (72, 284290), (80, 255861), (90, 227432), (120, 170574), (144, 142145), (180, 113716), (240, 85287), (360, 56858), (720, 28429)]