123683480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71909}}^1$

素因数の和:71963

約数の個数: 32

約数和(自身を含む): 284763600

約数和(自身を除く): 161080120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 71909, 143818, 287636, 359545, 575272, 719090, 1438180, 2876360, 3092087, 6184174, 12368348, 15460435, 24736696, 30920870, 61841740, 123683480]

約数ペア:

[(1, 123683480), (2, 61841740), (4, 30920870), (5, 24736696), (8, 15460435), (10, 12368348), (20, 6184174), (40, 3092087), (43, 2876360), (86, 1438180), (172, 719090), (215, 575272), (344, 359545), (430, 287636), (860, 143818), (1720, 71909)]