204028120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{118621}}^1$

素因数の和:118675

約数の個数: 32

約数和(自身を含む): 469743120

約数和(自身を除く): 265715000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 118621, 237242, 474484, 593105, 948968, 1186210, 2372420, 4744840, 5100703, 10201406, 20402812, 25503515, 40805624, 51007030, 102014060, 204028120]

約数ペア:

[(1, 204028120), (2, 102014060), (4, 51007030), (5, 40805624), (8, 25503515), (10, 20402812), (20, 10201406), (40, 5100703), (43, 4744840), (86, 2372420), (172, 1186210), (215, 948968), (344, 593105), (430, 474484), (860, 237242), (1720, 118621)]