124202920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{72211}}^1$

素因数の和:72265

約数の個数: 32

約数和(自身を含む): 285959520

約数和(自身を除く): 161756600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 72211, 144422, 288844, 361055, 577688, 722110, 1444220, 2888440, 3105073, 6210146, 12420292, 15525365, 24840584, 31050730, 62101460, 124202920]

約数ペア:

[(1, 124202920), (2, 62101460), (4, 31050730), (5, 24840584), (8, 15525365), (10, 12420292), (20, 6210146), (40, 3105073), (43, 2888440), (86, 1444220), (172, 722110), (215, 577688), (344, 361055), (430, 288844), (860, 144422), (1720, 72211)]