20745270720

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{23773}}^1$

素因数の和:23900

約数の個数: 224

約数和(自身を含む): 73912415040

約数和(自身を除く): 53167144320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 101, 108, 120, 135, 144, 160, 180, 192, 202, 216, 240, 270, 288, 303, 320, 360, 404, 432, 480, 505, 540, 576, 606, 720, 808, 864, 909, 960, 1010, 1080, 1212, 1440, 1515, 1616, 1728, 1818, 2020, 2160, 2424, 2727, 2880, 3030, 3232, 3636, 4040, 4320, 4545, 4848, 5454, 6060, 6464, 7272, 8080, 8640, 9090, 9696, 10908, 12120, 13635, 14544, 16160, 18180, 19392, 21816, 23773, 24240, 27270, 29088, 32320, 36360, 43632, 47546, 48480, 54540, 58176, 71319, 72720, 87264, 95092, 96960, 109080, 118865, 142638, 145440, 174528, 190184, 213957, 218160, 237730, 285276, 290880, 356595, 380368, 427914, 436320, 475460, 570552, 641871, 713190, 760736, 855828, 872640, 950920, 1069785, 1141104, 1283742, 1426380, 1521472, 1711656, 1901840, 2139570, 2282208, 2401073, 2567484, 2852760, 3209355, 3423312, 3803680, 4279140, 4564416, 4802146, 5134968, 5705520, 6418710, 6846624, 7203219, 7607360, 8558280, 9604292, 10269936, 11411040, 12005365, 12837420, 13693248, 14406438, 17116560, 19208584, 20539872, 21609657, 22822080, 24010730, 25674840, 28812876, 34233120, 36016095, 38417168, 41079744, 43219314, 48021460, 51349680, 57625752, 64828971, 68466240, 72032190, 76834336, 86438628, 96042920, 102699360, 108048285, 115251504, 129657942, 144064380, 153668672, 172877256, 192085840, 205398720, 216096570, 230503008, 259315884, 288128760, 324144855, 345754512, 384171680, 432193140, 461006016, 518631768, 576257520, 648289710, 691509024, 768343360, 864386280, 1037263536, 1152515040, 1296579420, 1383018048, 1728772560, 2074527072, 2305030080, 2593158840, 3457545120, 4149054144, 5186317680, 6915090240, 10372635360, 20745270720]

約数ペア:

[(1, 20745270720), (2, 10372635360), (3, 6915090240), (4, 5186317680), (5, 4149054144), (6, 3457545120), (8, 2593158840), (9, 2305030080), (10, 2074527072), (12, 1728772560), (15, 1383018048), (16, 1296579420), (18, 1152515040), (20, 1037263536), (24, 864386280), (27, 768343360), (30, 691509024), (32, 648289710), (36, 576257520), (40, 518631768), (45, 461006016), (48, 432193140), (54, 384171680), (60, 345754512), (64, 324144855), (72, 288128760), (80, 259315884), (90, 230503008), (96, 216096570), (101, 205398720), (108, 192085840), (120, 172877256), (135, 153668672), (144, 144064380), (160, 129657942), (180, 115251504), (192, 108048285), (202, 102699360), (216, 96042920), (240, 86438628), (270, 76834336), (288, 72032190), (303, 68466240), (320, 64828971), (360, 57625752), (404, 51349680), (432, 48021460), (480, 43219314), (505, 41079744), (540, 38417168), (576, 36016095), (606, 34233120), (720, 28812876), (808, 25674840), (864, 24010730), (909, 22822080), (960, 21609657), (1010, 20539872), (1080, 19208584), (1212, 17116560), (1440, 14406438), (1515, 13693248), (1616, 12837420), (1728, 12005365), (1818, 11411040), (2020, 10269936), (2160, 9604292), (2424, 8558280), (2727, 7607360), (2880, 7203219), (3030, 6846624), (3232, 6418710), (3636, 5705520), (4040, 5134968), (4320, 4802146), (4545, 4564416), (4848, 4279140), (5454, 3803680), (6060, 3423312), (6464, 3209355), (7272, 2852760), (8080, 2567484), (8640, 2401073), (9090, 2282208), (9696, 2139570), (10908, 1901840), (12120, 1711656), (13635, 1521472), (14544, 1426380), (16160, 1283742), (18180, 1141104), (19392, 1069785), (21816, 950920), (23773, 872640), (24240, 855828), (27270, 760736), (29088, 713190), (32320, 641871), (36360, 570552), (43632, 475460), (47546, 436320), (48480, 427914), (54540, 380368), (58176, 356595), (71319, 290880), (72720, 285276), (87264, 237730), (95092, 218160), (96960, 213957), (109080, 190184), (118865, 174528), (142638, 145440)]