68809440

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{20479}}^1$

素因数の和:20504

約数の個数: 96

約数和(自身を含む): 247726080

約数和(自身を除く): 178916640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 210, 224, 240, 280, 336, 420, 480, 560, 672, 840, 1120, 1680, 3360, 20479, 40958, 61437, 81916, 102395, 122874, 143353, 163832, 204790, 245748, 286706, 307185, 327664, 409580, 430059, 491496, 573412, 614370, 655328, 716765, 819160, 860118, 982992, 1146824, 1228740, 1433530, 1638320, 1720236, 1965984, 2150295, 2293648, 2457480, 2867060, 3276640, 3440472, 4300590, 4587296, 4914960, 5734120, 6880944, 8601180, 9829920, 11468240, 13761888, 17202360, 22936480, 34404720, 68809440]

約数ペア:

[(1, 68809440), (2, 34404720), (3, 22936480), (4, 17202360), (5, 13761888), (6, 11468240), (7, 9829920), (8, 8601180), (10, 6880944), (12, 5734120), (14, 4914960), (15, 4587296), (16, 4300590), (20, 3440472), (21, 3276640), (24, 2867060), (28, 2457480), (30, 2293648), (32, 2150295), (35, 1965984), (40, 1720236), (42, 1638320), (48, 1433530), (56, 1228740), (60, 1146824), (70, 982992), (80, 860118), (84, 819160), (96, 716765), (105, 655328), (112, 614370), (120, 573412), (140, 491496), (160, 430059), (168, 409580), (210, 327664), (224, 307185), (240, 286706), (280, 245748), (336, 204790), (420, 163832), (480, 143353), (560, 122874), (672, 102395), (840, 81916), (1120, 61437), (1680, 40958), (3360, 20479)]