81188520

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5087}}^1$

素因数の和:5127

約数の個数: 128

約数和(自身を含む): 293068800

約数和(自身を除く): 211880280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 70, 76, 84, 95, 105, 114, 120, 133, 140, 152, 168, 190, 210, 228, 266, 280, 285, 380, 399, 420, 456, 532, 570, 665, 760, 798, 840, 1064, 1140, 1330, 1596, 1995, 2280, 2660, 3192, 3990, 5087, 5320, 7980, 10174, 15261, 15960, 20348, 25435, 30522, 35609, 40696, 50870, 61044, 71218, 76305, 96653, 101740, 106827, 122088, 142436, 152610, 178045, 193306, 203480, 213654, 284872, 289959, 305220, 356090, 386612, 427308, 483265, 534135, 579918, 610440, 676571, 712180, 773224, 854616, 966530, 1068270, 1159836, 1353142, 1424360, 1449795, 1933060, 2029713, 2136540, 2319672, 2706284, 2899590, 3382855, 3866120, 4059426, 4273080, 5412568, 5799180, 6765710, 8118852, 10148565, 11598360, 13531420, 16237704, 20297130, 27062840, 40594260, 81188520]

約数ペア:

[(1, 81188520), (2, 40594260), (3, 27062840), (4, 20297130), (5, 16237704), (6, 13531420), (7, 11598360), (8, 10148565), (10, 8118852), (12, 6765710), (14, 5799180), (15, 5412568), (19, 4273080), (20, 4059426), (21, 3866120), (24, 3382855), (28, 2899590), (30, 2706284), (35, 2319672), (38, 2136540), (40, 2029713), (42, 1933060), (56, 1449795), (57, 1424360), (60, 1353142), (70, 1159836), (76, 1068270), (84, 966530), (95, 854616), (105, 773224), (114, 712180), (120, 676571), (133, 610440), (140, 579918), (152, 534135), (168, 483265), (190, 427308), (210, 386612), (228, 356090), (266, 305220), (280, 289959), (285, 284872), (380, 213654), (399, 203480), (420, 193306), (456, 178045), (532, 152610), (570, 142436), (665, 122088), (760, 106827), (798, 101740), (840, 96653), (1064, 76305), (1140, 71218), (1330, 61044), (1596, 50870), (1995, 40696), (2280, 35609), (2660, 30522), (3192, 25435), (3990, 20348), (5087, 15960), (5320, 15261), (7980, 10174)]