4988440

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{401}}^1$

素因数の和:723

約数の個数: 32

約数和(自身を含む): 11288160

約数和(自身を除く): 6299720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 401, 622, 802, 1244, 1555, 1604, 2005, 2488, 3110, 3208, 4010, 6220, 8020, 12440, 16040, 124711, 249422, 498844, 623555, 997688, 1247110, 2494220, 4988440]

約数ペア:

[(1, 4988440), (2, 2494220), (4, 1247110), (5, 997688), (8, 623555), (10, 498844), (20, 249422), (40, 124711), (311, 16040), (401, 12440), (622, 8020), (802, 6220), (1244, 4010), (1555, 3208), (1604, 3110), (2005, 2488)]