138409020

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{256313}}^1$

素因数の和:256331

約数の個数: 48

約数和(自身を含む): 430607520

約数和(自身を除く): 292198500

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, 256313, 512626, 768939, 1025252, 1281565, 1537878, 2306817, 2563130, 3075756, 3844695, 4613634, 5126260, 6920451, 7689390, 9227268, 11534085, 13840902, 15378780, 23068170, 27681804, 34602255, 46136340, 69204510, 138409020]

約数ペア:

[(1, 138409020), (2, 69204510), (3, 46136340), (4, 34602255), (5, 27681804), (6, 23068170), (9, 15378780), (10, 13840902), (12, 11534085), (15, 9227268), (18, 7689390), (20, 6920451), (27, 5126260), (30, 4613634), (36, 3844695), (45, 3075756), (54, 2563130), (60, 2306817), (90, 1537878), (108, 1281565), (135, 1025252), (180, 768939), (270, 512626), (540, 256313)]