2720840

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{271}}^1$

素因数の和:533

約数の個数: 32

約数和(自身を含む): 6168960

約数和(自身を除く): 3448120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 271, 502, 542, 1004, 1084, 1255, 1355, 2008, 2168, 2510, 2710, 5020, 5420, 10040, 10840, 68021, 136042, 272084, 340105, 544168, 680210, 1360420, 2720840]

約数ペア:

[(1, 2720840), (2, 1360420), (4, 680210), (5, 544168), (8, 340105), (10, 272084), (20, 136042), (40, 68021), (251, 10840), (271, 10040), (502, 5420), (542, 5020), (1004, 2710), (1084, 2510), (1255, 2168), (1355, 2008)]