20809440

素因数分解:

$2^5\times 3^3\times 5^1\times {\mathrm{4817}}^1$

素因数の和:4841

約数の個数: 96

約数和(自身を含む): 72848160

約数和(自身を除く): 52038720

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 432, 480, 540, 720, 864, 1080, 1440, 2160, 4320, 4817, 9634, 14451, 19268, 24085, 28902, 38536, 43353, 48170, 57804, 72255, 77072, 86706, 96340, 115608, 130059, 144510, 154144, 173412, 192680, 216765, 231216, 260118, 289020, 346824, 385360, 433530, 462432, 520236, 578040, 650295, 693648, 770720, 867060, 1040472, 1156080, 1300590, 1387296, 1734120, 2080944, 2312160, 2601180, 3468240, 4161888, 5202360, 6936480, 10404720, 20809440]

約数ペア:

[(1, 20809440), (2, 10404720), (3, 6936480), (4, 5202360), (5, 4161888), (6, 3468240), (8, 2601180), (9, 2312160), (10, 2080944), (12, 1734120), (15, 1387296), (16, 1300590), (18, 1156080), (20, 1040472), (24, 867060), (27, 770720), (30, 693648), (32, 650295), (36, 578040), (40, 520236), (45, 462432), (48, 433530), (54, 385360), (60, 346824), (72, 289020), (80, 260118), (90, 231216), (96, 216765), (108, 192680), (120, 173412), (135, 154144), (144, 144510), (160, 130059), (180, 115608), (216, 96340), (240, 86706), (270, 77072), (288, 72255), (360, 57804), (432, 48170), (480, 43353), (540, 38536), (720, 28902), (864, 24085), (1080, 19268), (1440, 14451), (2160, 9634), (4320, 4817)]