81785880

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1087}}^1$

素因数の和:1134

約数の個数: 192

約数和(自身を含む): 305510400

約数和(自身を除く): 223724520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 19, 20, 22, 24, 30, 33, 36, 38, 40, 44, 45, 55, 57, 60, 66, 72, 76, 88, 90, 95, 99, 110, 114, 120, 132, 152, 165, 171, 180, 190, 198, 209, 220, 228, 264, 285, 330, 342, 360, 380, 396, 418, 440, 456, 495, 570, 627, 660, 684, 760, 792, 836, 855, 990, 1045, 1087, 1140, 1254, 1320, 1368, 1672, 1710, 1881, 1980, 2090, 2174, 2280, 2508, 3135, 3261, 3420, 3762, 3960, 4180, 4348, 5016, 5435, 6270, 6522, 6840, 7524, 8360, 8696, 9405, 9783, 10870, 11957, 12540, 13044, 15048, 16305, 18810, 19566, 20653, 21740, 23914, 25080, 26088, 32610, 35871, 37620, 39132, 41306, 43480, 47828, 48915, 59785, 61959, 65220, 71742, 75240, 78264, 82612, 95656, 97830, 103265, 107613, 119570, 123918, 130440, 143484, 165224, 179355, 185877, 195660, 206530, 215226, 227183, 239140, 247836, 286968, 309795, 358710, 371754, 391320, 413060, 430452, 454366, 478280, 495672, 538065, 619590, 681549, 717420, 743508, 826120, 860904, 908732, 929385, 1076130, 1135915, 1239180, 1363098, 1434840, 1487016, 1817464, 1858770, 2044647, 2152260, 2271830, 2478360, 2726196, 3407745, 3717540, 4089294, 4304520, 4543660, 5452392, 6815490, 7435080, 8178588, 9087320, 10223235, 13630980, 16357176, 20446470, 27261960, 40892940, 81785880]

約数ペア:

[(1, 81785880), (2, 40892940), (3, 27261960), (4, 20446470), (5, 16357176), (6, 13630980), (8, 10223235), (9, 9087320), (10, 8178588), (11, 7435080), (12, 6815490), (15, 5452392), (18, 4543660), (19, 4304520), (20, 4089294), (22, 3717540), (24, 3407745), (30, 2726196), (33, 2478360), (36, 2271830), (38, 2152260), (40, 2044647), (44, 1858770), (45, 1817464), (55, 1487016), (57, 1434840), (60, 1363098), (66, 1239180), (72, 1135915), (76, 1076130), (88, 929385), (90, 908732), (95, 860904), (99, 826120), (110, 743508), (114, 717420), (120, 681549), (132, 619590), (152, 538065), (165, 495672), (171, 478280), (180, 454366), (190, 430452), (198, 413060), (209, 391320), (220, 371754), (228, 358710), (264, 309795), (285, 286968), (330, 247836), (342, 239140), (360, 227183), (380, 215226), (396, 206530), (418, 195660), (440, 185877), (456, 179355), (495, 165224), (570, 143484), (627, 130440), (660, 123918), (684, 119570), (760, 107613), (792, 103265), (836, 97830), (855, 95656), (990, 82612), (1045, 78264), (1087, 75240), (1140, 71742), (1254, 65220), (1320, 61959), (1368, 59785), (1672, 48915), (1710, 47828), (1881, 43480), (1980, 41306), (2090, 39132), (2174, 37620), (2280, 35871), (2508, 32610), (3135, 26088), (3261, 25080), (3420, 23914), (3762, 21740), (3960, 20653), (4180, 19566), (4348, 18810), (5016, 16305), (5435, 15048), (6270, 13044), (6522, 12540), (6840, 11957), (7524, 10870), (8360, 9783), (8696, 9405)]