128786985

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{2131}}^1$

素因数の和:2238

約数の個数: 48

約数和(自身を含む): 239466240

約数和(自身を除く): 110679255

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 79, 85, 153, 237, 255, 395, 711, 765, 1185, 1343, 2131, 3555, 4029, 6393, 6715, 10655, 12087, 19179, 20145, 31965, 36227, 60435, 95895, 108681, 168349, 181135, 326043, 505047, 543405, 841745, 1515141, 1630215, 2525235, 2861933, 7575705, 8585799, 14309665, 25757397, 42928995, 128786985]

約数ペア:

[(1, 128786985), (3, 42928995), (5, 25757397), (9, 14309665), (15, 8585799), (17, 7575705), (45, 2861933), (51, 2525235), (79, 1630215), (85, 1515141), (153, 841745), (237, 543405), (255, 505047), (395, 326043), (711, 181135), (765, 168349), (1185, 108681), (1343, 95895), (2131, 60435), (3555, 36227), (4029, 31965), (6393, 20145), (6715, 19179), (10655, 12087)]