20068504

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{151}}^1\times {\mathrm{449}}^1$

素因数の和:643

約数の個数: 32

約数和(自身を含む): 38988000

約数和(自身を除く): 18919496

約数列:

[1, 2, 4, 8, 37, 74, 148, 151, 296, 302, 449, 604, 898, 1208, 1796, 3592, 5587, 11174, 16613, 22348, 33226, 44696, 66452, 67799, 132904, 135598, 271196, 542392, 2508563, 5017126, 10034252, 20068504]

約数ペア:

[(1, 20068504), (2, 10034252), (4, 5017126), (8, 2508563), (37, 542392), (74, 271196), (148, 135598), (151, 132904), (296, 67799), (302, 66452), (449, 44696), (604, 33226), (898, 22348), (1208, 16613), (1796, 11174), (3592, 5587)]