20786308965

素因数分解:

$3^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:544

約数の個数: 128

約数和(自身を含む): 38474956800

約数和(自身を除く): 17688647835

約数列:

[1, 3, 5, 9, 15, 27, 45, 71, 79, 97, 135, 213, 237, 283, 291, 355, 395, 485, 639, 711, 849, 873, 1065, 1185, 1415, 1455, 1917, 2133, 2547, 2619, 3195, 3555, 4245, 4365, 5609, 6887, 7641, 7663, 9585, 10665, 12735, 13095, 16827, 20093, 20661, 22357, 22989, 27451, 28045, 34435, 38205, 38315, 50481, 60279, 61983, 67071, 68967, 82353, 84135, 100465, 103305, 111785, 114945, 137255, 151443, 180837, 185949, 201213, 206901, 247059, 252405, 301395, 309915, 335355, 344835, 411765, 542511, 544073, 603639, 741177, 757215, 904185, 929745, 1006065, 1034505, 1235295, 1587347, 1632219, 1949021, 2168629, 2712555, 2720365, 3018195, 3705885, 4762041, 4896657, 5847063, 6505887, 7936735, 8161095, 9745105, 10843145, 14286123, 14689971, 17541189, 19517661, 23810205, 24483285, 29235315, 32529435, 42858369, 52623567, 58552983, 71430615, 73449855, 87705945, 97588305, 153972659, 214291845, 263117835, 292764915, 461917977, 769863295, 1385753931, 2309589885, 4157261793, 6928769655, 20786308965]

約数ペア:

[(1, 20786308965), (3, 6928769655), (5, 4157261793), (9, 2309589885), (15, 1385753931), (27, 769863295), (45, 461917977), (71, 292764915), (79, 263117835), (97, 214291845), (135, 153972659), (213, 97588305), (237, 87705945), (283, 73449855), (291, 71430615), (355, 58552983), (395, 52623567), (485, 42858369), (639, 32529435), (711, 29235315), (849, 24483285), (873, 23810205), (1065, 19517661), (1185, 17541189), (1415, 14689971), (1455, 14286123), (1917, 10843145), (2133, 9745105), (2547, 8161095), (2619, 7936735), (3195, 6505887), (3555, 5847063), (4245, 4896657), (4365, 4762041), (5609, 3705885), (6887, 3018195), (7641, 2720365), (7663, 2712555), (9585, 2168629), (10665, 1949021), (12735, 1632219), (13095, 1587347), (16827, 1235295), (20093, 1034505), (20661, 1006065), (22357, 929745), (22989, 904185), (27451, 757215), (28045, 741177), (34435, 603639), (38205, 544073), (38315, 542511), (50481, 411765), (60279, 344835), (61983, 335355), (67071, 309915), (68967, 301395), (82353, 252405), (84135, 247059), (100465, 206901), (103305, 201213), (111785, 185949), (114945, 180837), (137255, 151443)]