2156869640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1739411}}^1$

素因数の和:1739453

約数の個数: 32

約数和(自身を含む): 5009506560

約数和(自身を除く): 2852636920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 1739411, 3478822, 6957644, 8697055, 13915288, 17394110, 34788220, 53921741, 69576440, 107843482, 215686964, 269608705, 431373928, 539217410, 1078434820, 2156869640]

約数ペア:

[(1, 2156869640), (2, 1078434820), (4, 539217410), (5, 431373928), (8, 269608705), (10, 215686964), (20, 107843482), (31, 69576440), (40, 53921741), (62, 34788220), (124, 17394110), (155, 13915288), (248, 8697055), (310, 6957644), (620, 3478822), (1240, 1739411)]