51373040

素因数分解:

$2^4\times 5^1\times {\mathrm{642163}}^1$

素因数の和:642176

約数の個数: 20

約数和(自身を含む): 119442504

約数和(自身を除く): 68069464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 642163, 1284326, 2568652, 3210815, 5137304, 6421630, 10274608, 12843260, 25686520, 51373040]

約数ペア:

[(1, 51373040), (2, 25686520), (4, 12843260), (5, 10274608), (8, 6421630), (10, 5137304), (16, 3210815), (20, 2568652), (40, 1284326), (80, 642163)]