257648220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1431379}}^1$

素因数の和:1431394

約数の個数: 36

約数和(自身を含む): 781533480

約数和(自身を除く): 523885260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1431379, 2862758, 4294137, 5725516, 7156895, 8588274, 12882411, 14313790, 17176548, 21470685, 25764822, 28627580, 42941370, 51529644, 64412055, 85882740, 128824110, 257648220]

約数ペア:

[(1, 257648220), (2, 128824110), (3, 85882740), (4, 64412055), (5, 51529644), (6, 42941370), (9, 28627580), (10, 25764822), (12, 21470685), (15, 17176548), (18, 14313790), (20, 12882411), (30, 8588274), (36, 7156895), (45, 5725516), (60, 4294137), (90, 2862758), (180, 1431379)]