82720840

素因数分解:

$2^3\times 5^1\times {\mathrm{241}}^1\times {\mathrm{8581}}^1$

素因数の和:8833

約数の個数: 32

約数和(自身を含む): 186915960

約数和(自身を除く): 104195120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 241, 482, 964, 1205, 1928, 2410, 4820, 8581, 9640, 17162, 34324, 42905, 68648, 85810, 171620, 343240, 2068021, 4136042, 8272084, 10340105, 16544168, 20680210, 41360420, 82720840]

約数ペア:

[(1, 82720840), (2, 41360420), (4, 20680210), (5, 16544168), (8, 10340105), (10, 8272084), (20, 4136042), (40, 2068021), (241, 343240), (482, 171620), (964, 85810), (1205, 68648), (1928, 42905), (2410, 34324), (4820, 17162), (8581, 9640)]