648091920

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{97}}^2$

素因数の和:258

約数の個数: 240

約数和(自身を含む): 2376597888

約数和(自身を除く): 1728505968

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 41, 42, 48, 56, 60, 70, 80, 82, 84, 97, 105, 112, 120, 123, 140, 164, 168, 194, 205, 210, 240, 246, 280, 287, 291, 328, 336, 388, 410, 420, 485, 492, 560, 574, 582, 615, 656, 679, 776, 820, 840, 861, 970, 984, 1148, 1164, 1230, 1358, 1435, 1455, 1552, 1640, 1680, 1722, 1940, 1968, 2037, 2296, 2328, 2460, 2716, 2870, 2910, 3280, 3395, 3444, 3880, 3977, 4074, 4305, 4592, 4656, 4920, 5432, 5740, 5820, 6790, 6888, 7760, 7954, 8148, 8610, 9409, 9840, 10185, 10864, 11480, 11640, 11931, 13580, 13776, 15908, 16296, 17220, 18818, 19885, 20370, 22960, 23280, 23862, 27160, 27839, 28227, 31816, 32592, 34440, 37636, 39770, 40740, 47045, 47724, 54320, 55678, 56454, 59655, 63632, 65863, 68880, 75272, 79540, 81480, 83517, 94090, 95448, 111356, 112908, 119310, 131726, 139195, 141135, 150544, 159080, 162960, 167034, 188180, 190896, 197589, 222712, 225816, 238620, 263452, 278390, 282270, 318160, 329315, 334068, 376360, 385769, 395178, 417585, 445424, 451632, 477240, 526904, 556780, 564540, 658630, 668136, 752720, 771538, 790356, 835170, 954480, 987945, 1053808, 1113560, 1129080, 1157307, 1317260, 1336272, 1543076, 1580712, 1670340, 1928845, 1975890, 2227120, 2258160, 2314614, 2634520, 2700383, 3086152, 3161424, 3340680, 3857690, 3951780, 4629228, 5269040, 5400766, 5786535, 6172304, 6681360, 7715380, 7903560, 8101149, 9258456, 10801532, 11573070, 13501915, 15430760, 15807120, 16202298, 18516912, 21603064, 23146140, 27003830, 30861520, 32404596, 40505745, 43206128, 46292280, 54007660, 64809192, 81011490, 92584560, 108015320, 129618384, 162022980, 216030640, 324045960, 648091920]

約数ペア:

[(1, 648091920), (2, 324045960), (3, 216030640), (4, 162022980), (5, 129618384), (6, 108015320), (7, 92584560), (8, 81011490), (10, 64809192), (12, 54007660), (14, 46292280), (15, 43206128), (16, 40505745), (20, 32404596), (21, 30861520), (24, 27003830), (28, 23146140), (30, 21603064), (35, 18516912), (40, 16202298), (41, 15807120), (42, 15430760), (48, 13501915), (56, 11573070), (60, 10801532), (70, 9258456), (80, 8101149), (82, 7903560), (84, 7715380), (97, 6681360), (105, 6172304), (112, 5786535), (120, 5400766), (123, 5269040), (140, 4629228), (164, 3951780), (168, 3857690), (194, 3340680), (205, 3161424), (210, 3086152), (240, 2700383), (246, 2634520), (280, 2314614), (287, 2258160), (291, 2227120), (328, 1975890), (336, 1928845), (388, 1670340), (410, 1580712), (420, 1543076), (485, 1336272), (492, 1317260), (560, 1157307), (574, 1129080), (582, 1113560), (615, 1053808), (656, 987945), (679, 954480), (776, 835170), (820, 790356), (840, 771538), (861, 752720), (970, 668136), (984, 658630), (1148, 564540), (1164, 556780), (1230, 526904), (1358, 477240), (1435, 451632), (1455, 445424), (1552, 417585), (1640, 395178), (1680, 385769), (1722, 376360), (1940, 334068), (1968, 329315), (2037, 318160), (2296, 282270), (2328, 278390), (2460, 263452), (2716, 238620), (2870, 225816), (2910, 222712), (3280, 197589), (3395, 190896), (3444, 188180), (3880, 167034), (3977, 162960), (4074, 159080), (4305, 150544), (4592, 141135), (4656, 139195), (4920, 131726), (5432, 119310), (5740, 112908), (5820, 111356), (6790, 95448), (6888, 94090), (7760, 83517), (7954, 81480), (8148, 79540), (8610, 75272), (9409, 68880), (9840, 65863), (10185, 63632), (10864, 59655), (11480, 56454), (11640, 55678), (11931, 54320), (13580, 47724), (13776, 47045), (15908, 40740), (16296, 39770), (17220, 37636), (18818, 34440), (19885, 32592), (20370, 31816), (22960, 28227), (23280, 27839), (23862, 27160)]