18749880

素因数分解:

$2^3\times 3^6\times 5^1\times {\mathrm{643}}^1$

素因数の和:672

約数の個数: 112

約数和(自身を含む): 63350280

約数和(自身を除く): 44600400

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 81, 90, 108, 120, 135, 162, 180, 216, 243, 270, 324, 360, 405, 486, 540, 643, 648, 729, 810, 972, 1080, 1215, 1286, 1458, 1620, 1929, 1944, 2430, 2572, 2916, 3215, 3240, 3645, 3858, 4860, 5144, 5787, 5832, 6430, 7290, 7716, 9645, 9720, 11574, 12860, 14580, 15432, 17361, 19290, 23148, 25720, 28935, 29160, 34722, 38580, 46296, 52083, 57870, 69444, 77160, 86805, 104166, 115740, 138888, 156249, 173610, 208332, 231480, 260415, 312498, 347220, 416664, 468747, 520830, 624996, 694440, 781245, 937494, 1041660, 1249992, 1562490, 1874988, 2083320, 2343735, 3124980, 3749976, 4687470, 6249960, 9374940, 18749880]

約数ペア:

[(1, 18749880), (2, 9374940), (3, 6249960), (4, 4687470), (5, 3749976), (6, 3124980), (8, 2343735), (9, 2083320), (10, 1874988), (12, 1562490), (15, 1249992), (18, 1041660), (20, 937494), (24, 781245), (27, 694440), (30, 624996), (36, 520830), (40, 468747), (45, 416664), (54, 347220), (60, 312498), (72, 260415), (81, 231480), (90, 208332), (108, 173610), (120, 156249), (135, 138888), (162, 115740), (180, 104166), (216, 86805), (243, 77160), (270, 69444), (324, 57870), (360, 52083), (405, 46296), (486, 38580), (540, 34722), (643, 29160), (648, 28935), (729, 25720), (810, 23148), (972, 19290), (1080, 17361), (1215, 15432), (1286, 14580), (1458, 12860), (1620, 11574), (1929, 9720), (1944, 9645), (2430, 7716), (2572, 7290), (2916, 6430), (3215, 5832), (3240, 5787), (3645, 5144), (3858, 4860)]