12499920

素因数分解:

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

素因数の和:671

約数の個数: 120

約数和(自身を含む): 43601376

約数和(自身を除く): 31101456

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, 81, 90, 108, 120, 135, 144, 162, 180, 216, 240, 243, 270, 324, 360, 405, 432, 486, 540, 643, 648, 720, 810, 972, 1080, 1215, 1286, 1296, 1620, 1929, 1944, 2160, 2430, 2572, 3215, 3240, 3858, 3888, 4860, 5144, 5787, 6430, 6480, 7716, 9645, 9720, 10288, 11574, 12860, 15432, 17361, 19290, 19440, 23148, 25720, 28935, 30864, 34722, 38580, 46296, 51440, 52083, 57870, 69444, 77160, 86805, 92592, 104166, 115740, 138888, 154320, 156249, 173610, 208332, 231480, 260415, 277776, 312498, 347220, 416664, 462960, 520830, 624996, 694440, 781245, 833328, 1041660, 1249992, 1388880, 1562490, 2083320, 2499984, 3124980, 4166640, 6249960, 12499920]

約数ペア:

[(1, 12499920), (2, 6249960), (3, 4166640), (4, 3124980), (5, 2499984), (6, 2083320), (8, 1562490), (9, 1388880), (10, 1249992), (12, 1041660), (15, 833328), (16, 781245), (18, 694440), (20, 624996), (24, 520830), (27, 462960), (30, 416664), (36, 347220), (40, 312498), (45, 277776), (48, 260415), (54, 231480), (60, 208332), (72, 173610), (80, 156249), (81, 154320), (90, 138888), (108, 115740), (120, 104166), (135, 92592), (144, 86805), (162, 77160), (180, 69444), (216, 57870), (240, 52083), (243, 51440), (270, 46296), (324, 38580), (360, 34722), (405, 30864), (432, 28935), (486, 25720), (540, 23148), (643, 19440), (648, 19290), (720, 17361), (810, 15432), (972, 12860), (1080, 11574), (1215, 10288), (1286, 9720), (1296, 9645), (1620, 7716), (1929, 6480), (1944, 6430), (2160, 5787), (2430, 5144), (2572, 4860), (3215, 3888), (3240, 3858)]