1388880

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{643}}^1$

素因数の和:665

約数の個数: 80

約数和(自身を含む): 4791360

約数和(自身を除く): 3402480

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, 643, 720, 1080, 1286, 1929, 2160, 2572, 3215, 3858, 5144, 5787, 6430, 7716, 9645, 10288, 11574, 12860, 15432, 17361, 19290, 23148, 25720, 28935, 30864, 34722, 38580, 46296, 51440, 57870, 69444, 77160, 86805, 92592, 115740, 138888, 154320, 173610, 231480, 277776, 347220, 462960, 694440, 1388880]

約数ペア:

[(1, 1388880), (2, 694440), (3, 462960), (4, 347220), (5, 277776), (6, 231480), (8, 173610), (9, 154320), (10, 138888), (12, 115740), (15, 92592), (16, 86805), (18, 77160), (20, 69444), (24, 57870), (27, 51440), (30, 46296), (36, 38580), (40, 34722), (45, 30864), (48, 28935), (54, 25720), (60, 23148), (72, 19290), (80, 17361), (90, 15432), (108, 12860), (120, 11574), (135, 10288), (144, 9645), (180, 7716), (216, 6430), (240, 5787), (270, 5144), (360, 3858), (432, 3215), (540, 2572), (643, 2160), (720, 1929), (1080, 1286)]