140840840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{503003}}^1$

素因数の和:503021

約数の個数: 32

約数和(自身を含む): 362162880

約数和(自身を除く): 221322040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 503003, 1006006, 2012012, 2515015, 3521021, 4024024, 5030030, 7042042, 10060060, 14084084, 17605105, 20120120, 28168168, 35210210, 70420420, 140840840]

約数ペア:

[(1, 140840840), (2, 70420420), (4, 35210210), (5, 28168168), (7, 20120120), (8, 17605105), (10, 14084084), (14, 10060060), (20, 7042042), (28, 5030030), (35, 4024024), (40, 3521021), (56, 2515015), (70, 2012012), (140, 1006006), (280, 503003)]