138405780

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{256307}}^1$

素因数の和:256325

約数の個数: 48

約数和(自身を含む): 430597440

約数和(自身を除く): 292191660

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 256307, 512614, 768921, 1025228, 1281535, 1537842, 2306763, 2563070, 3075684, 3844605, 4613526, 5126140, 6920289, 7689210, 9227052, 11533815, 13840578, 15378420, 23067630, 27681156, 34601445, 46135260, 69202890, 138405780]

約数ペア:

[(1, 138405780), (2, 69202890), (3, 46135260), (4, 34601445), (5, 27681156), (6, 23067630), (9, 15378420), (10, 13840578), (12, 11533815), (15, 9227052), (18, 7689210), (20, 6920289), (27, 5126140), (30, 4613526), (36, 3844605), (45, 3075684), (54, 2563070), (60, 2306763), (90, 1537842), (108, 1281535), (135, 1025228), (180, 768921), (270, 512614), (540, 256307)]