648549180

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{400339}}^1$

素因数の和:400360

約数の個数: 60

約数和(自身を含む): 2034527880

約数和(自身を除く): 1385978700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 400339, 800678, 1201017, 1601356, 2001695, 2402034, 3603051, 4003390, 4804068, 6005085, 7206102, 8006780, 10809153, 12010170, 14412204, 18015255, 21618306, 24020340, 32427459, 36030510, 43236612, 54045765, 64854918, 72061020, 108091530, 129709836, 162137295, 216183060, 324274590, 648549180]

約数ペア:

[(1, 648549180), (2, 324274590), (3, 216183060), (4, 162137295), (5, 129709836), (6, 108091530), (9, 72061020), (10, 64854918), (12, 54045765), (15, 43236612), (18, 36030510), (20, 32427459), (27, 24020340), (30, 21618306), (36, 18015255), (45, 14412204), (54, 12010170), (60, 10809153), (81, 8006780), (90, 7206102), (108, 6005085), (135, 4804068), (162, 4003390), (180, 3603051), (270, 2402034), (324, 2001695), (405, 1601356), (540, 1201017), (810, 800678), (1620, 400339)]