28722960

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1$

素因数の和:206

約数の個数: 240

約数和(自身を含む): 113742720

約数和(自身を除く): 85019760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 41, 42, 45, 48, 56, 60, 63, 70, 72, 80, 82, 84, 90, 105, 112, 120, 123, 126, 139, 140, 144, 164, 168, 180, 205, 210, 240, 246, 252, 278, 280, 287, 315, 328, 336, 360, 369, 410, 417, 420, 492, 504, 556, 560, 574, 615, 630, 656, 695, 720, 738, 820, 834, 840, 861, 973, 984, 1008, 1112, 1148, 1230, 1251, 1260, 1390, 1435, 1476, 1640, 1668, 1680, 1722, 1845, 1946, 1968, 2085, 2224, 2296, 2460, 2502, 2520, 2583, 2780, 2870, 2919, 2952, 3280, 3336, 3444, 3690, 3892, 4170, 4305, 4592, 4865, 4920, 5004, 5040, 5166, 5560, 5699, 5740, 5838, 5904, 6255, 6672, 6888, 7380, 7784, 8340, 8610, 8757, 9730, 9840, 10008, 10332, 11120, 11398, 11480, 11676, 12510, 12915, 13776, 14595, 14760, 15568, 16680, 17097, 17220, 17514, 19460, 20016, 20664, 22796, 22960, 23352, 25020, 25830, 28495, 29190, 29520, 33360, 34194, 34440, 35028, 38920, 39893, 41328, 43785, 45592, 46704, 50040, 51291, 51660, 56990, 58380, 68388, 68880, 70056, 77840, 79786, 85485, 87570, 91184, 100080, 102582, 103320, 113980, 116760, 119679, 136776, 140112, 159572, 170970, 175140, 199465, 205164, 206640, 227960, 233520, 239358, 256455, 273552, 319144, 341940, 350280, 359037, 398930, 410328, 455920, 478716, 512910, 598395, 638288, 683880, 700560, 718074, 797860, 820656, 957432, 1025820, 1196790, 1367760, 1436148, 1595720, 1795185, 1914864, 2051640, 2393580, 2872296, 3191440, 3590370, 4103280, 4787160, 5744592, 7180740, 9574320, 14361480, 28722960]

約数ペア:

[(1, 28722960), (2, 14361480), (3, 9574320), (4, 7180740), (5, 5744592), (6, 4787160), (7, 4103280), (8, 3590370), (9, 3191440), (10, 2872296), (12, 2393580), (14, 2051640), (15, 1914864), (16, 1795185), (18, 1595720), (20, 1436148), (21, 1367760), (24, 1196790), (28, 1025820), (30, 957432), (35, 820656), (36, 797860), (40, 718074), (41, 700560), (42, 683880), (45, 638288), (48, 598395), (56, 512910), (60, 478716), (63, 455920), (70, 410328), (72, 398930), (80, 359037), (82, 350280), (84, 341940), (90, 319144), (105, 273552), (112, 256455), (120, 239358), (123, 233520), (126, 227960), (139, 206640), (140, 205164), (144, 199465), (164, 175140), (168, 170970), (180, 159572), (205, 140112), (210, 136776), (240, 119679), (246, 116760), (252, 113980), (278, 103320), (280, 102582), (287, 100080), (315, 91184), (328, 87570), (336, 85485), (360, 79786), (369, 77840), (410, 70056), (417, 68880), (420, 68388), (492, 58380), (504, 56990), (556, 51660), (560, 51291), (574, 50040), (615, 46704), (630, 45592), (656, 43785), (695, 41328), (720, 39893), (738, 38920), (820, 35028), (834, 34440), (840, 34194), (861, 33360), (973, 29520), (984, 29190), (1008, 28495), (1112, 25830), (1148, 25020), (1230, 23352), (1251, 22960), (1260, 22796), (1390, 20664), (1435, 20016), (1476, 19460), (1640, 17514), (1668, 17220), (1680, 17097), (1722, 16680), (1845, 15568), (1946, 14760), (1968, 14595), (2085, 13776), (2224, 12915), (2296, 12510), (2460, 11676), (2502, 11480), (2520, 11398), (2583, 11120), (2780, 10332), (2870, 10008), (2919, 9840), (2952, 9730), (3280, 8757), (3336, 8610), (3444, 8340), (3690, 7784), (3892, 7380), (4170, 6888), (4305, 6672), (4592, 6255), (4865, 5904), (4920, 5838), (5004, 5740), (5040, 5699), (5166, 5560)]