20828880

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{9643}}^1$

素因数の和:9665

約数の個数: 80

約数和(自身を含む): 71751360

約数和(自身を除く): 50922480

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 36, 40, 45, 48, 54, 60, 72, 80, 90, 108, 120, 135, 144, 180, 216, 240, 270, 360, 432, 540, 720, 1080, 2160, 9643, 19286, 28929, 38572, 48215, 57858, 77144, 86787, 96430, 115716, 144645, 154288, 173574, 192860, 231432, 260361, 289290, 347148, 385720, 433935, 462864, 520722, 578580, 694296, 771440, 867870, 1041444, 1157160, 1301805, 1388592, 1735740, 2082888, 2314320, 2603610, 3471480, 4165776, 5207220, 6942960, 10414440, 20828880]

約数ペア:

[(1, 20828880), (2, 10414440), (3, 6942960), (4, 5207220), (5, 4165776), (6, 3471480), (8, 2603610), (9, 2314320), (10, 2082888), (12, 1735740), (15, 1388592), (16, 1301805), (18, 1157160), (20, 1041444), (24, 867870), (27, 771440), (30, 694296), (36, 578580), (40, 520722), (45, 462864), (48, 433935), (54, 385720), (60, 347148), (72, 289290), (80, 260361), (90, 231432), (108, 192860), (120, 173574), (135, 154288), (144, 144645), (180, 115716), (216, 96430), (240, 86787), (270, 77144), (360, 57858), (432, 48215), (540, 38572), (720, 28929), (1080, 19286), (2160, 9643)]