81342800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1$

素因数の和:194

約数の個数: 240

約数和(自身を含む): 258316800

約数和(自身を除く): 176974000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 19, 20, 22, 25, 28, 35, 38, 40, 44, 50, 55, 56, 70, 76, 77, 80, 88, 95, 100, 110, 112, 133, 139, 140, 152, 154, 175, 176, 190, 200, 209, 220, 266, 275, 278, 280, 304, 308, 350, 380, 385, 400, 418, 440, 475, 532, 550, 556, 560, 616, 665, 695, 700, 760, 770, 836, 880, 950, 973, 1045, 1064, 1100, 1112, 1232, 1330, 1390, 1400, 1463, 1520, 1529, 1540, 1672, 1900, 1925, 1946, 2090, 2128, 2200, 2224, 2641, 2660, 2780, 2800, 2926, 3058, 3080, 3325, 3344, 3475, 3800, 3850, 3892, 4180, 4400, 4865, 5225, 5282, 5320, 5560, 5852, 6116, 6160, 6650, 6950, 7315, 7600, 7645, 7700, 7784, 8360, 9730, 10450, 10564, 10640, 10703, 11120, 11704, 12232, 13205, 13300, 13900, 14630, 15290, 15400, 15568, 16720, 18487, 19460, 20900, 21128, 21406, 23408, 24325, 24464, 26410, 26600, 27800, 29051, 29260, 30580, 30800, 36575, 36974, 38225, 38920, 41800, 42256, 42812, 48650, 52820, 53200, 53515, 55600, 58102, 58520, 61160, 66025, 73150, 73948, 76450, 77840, 83600, 85624, 92435, 97300, 105640, 107030, 116204, 117040, 122320, 132050, 145255, 146300, 147896, 152900, 171248, 184870, 194600, 203357, 211280, 214060, 232408, 264100, 267575, 290510, 292600, 295792, 305800, 369740, 389200, 406714, 428120, 462175, 464816, 528200, 535150, 581020, 585200, 611600, 726275, 739480, 813428, 856240, 924350, 1016785, 1056400, 1070300, 1162040, 1452550, 1478960, 1626856, 1848700, 2033570, 2140600, 2324080, 2905100, 3253712, 3697400, 4067140, 4281200, 5083925, 5810200, 7394800, 8134280, 10167850, 11620400, 16268560, 20335700, 40671400, 81342800]

約数ペア:

[(1, 81342800), (2, 40671400), (4, 20335700), (5, 16268560), (7, 11620400), (8, 10167850), (10, 8134280), (11, 7394800), (14, 5810200), (16, 5083925), (19, 4281200), (20, 4067140), (22, 3697400), (25, 3253712), (28, 2905100), (35, 2324080), (38, 2140600), (40, 2033570), (44, 1848700), (50, 1626856), (55, 1478960), (56, 1452550), (70, 1162040), (76, 1070300), (77, 1056400), (80, 1016785), (88, 924350), (95, 856240), (100, 813428), (110, 739480), (112, 726275), (133, 611600), (139, 585200), (140, 581020), (152, 535150), (154, 528200), (175, 464816), (176, 462175), (190, 428120), (200, 406714), (209, 389200), (220, 369740), (266, 305800), (275, 295792), (278, 292600), (280, 290510), (304, 267575), (308, 264100), (350, 232408), (380, 214060), (385, 211280), (400, 203357), (418, 194600), (440, 184870), (475, 171248), (532, 152900), (550, 147896), (556, 146300), (560, 145255), (616, 132050), (665, 122320), (695, 117040), (700, 116204), (760, 107030), (770, 105640), (836, 97300), (880, 92435), (950, 85624), (973, 83600), (1045, 77840), (1064, 76450), (1100, 73948), (1112, 73150), (1232, 66025), (1330, 61160), (1390, 58520), (1400, 58102), (1463, 55600), (1520, 53515), (1529, 53200), (1540, 52820), (1672, 48650), (1900, 42812), (1925, 42256), (1946, 41800), (2090, 38920), (2128, 38225), (2200, 36974), (2224, 36575), (2641, 30800), (2660, 30580), (2780, 29260), (2800, 29051), (2926, 27800), (3058, 26600), (3080, 26410), (3325, 24464), (3344, 24325), (3475, 23408), (3800, 21406), (3850, 21128), (3892, 20900), (4180, 19460), (4400, 18487), (4865, 16720), (5225, 15568), (5282, 15400), (5320, 15290), (5560, 14630), (5852, 13900), (6116, 13300), (6160, 13205), (6650, 12232), (6950, 11704), (7315, 11120), (7600, 10703), (7645, 10640), (7700, 10564), (7784, 10450), (8360, 9730)]