51680840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{30047}}^1$

素因数の和:30101

約数の個数: 32

約数和(自身を含む): 118990080

約数和(自身を除く): 67309240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 30047, 60094, 120188, 150235, 240376, 300470, 600940, 1201880, 1292021, 2584042, 5168084, 6460105, 10336168, 12920210, 25840420, 51680840]

約数ペア:

[(1, 51680840), (2, 25840420), (4, 12920210), (5, 10336168), (8, 6460105), (10, 5168084), (20, 2584042), (40, 1292021), (43, 1201880), (86, 600940), (172, 300470), (215, 240376), (344, 150235), (430, 120188), (860, 60094), (1720, 30047)]