661888440

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{467}}^1$

素因数の和:642

約数の個数: 192

約数和(自身を含む): 2242805760

約数和(自身を除く): 1580917320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 45, 60, 62, 72, 90, 93, 120, 124, 127, 155, 180, 186, 248, 254, 279, 310, 360, 372, 381, 465, 467, 508, 558, 620, 635, 744, 762, 930, 934, 1016, 1116, 1143, 1240, 1270, 1395, 1401, 1524, 1860, 1868, 1905, 2232, 2286, 2335, 2540, 2790, 2802, 3048, 3720, 3736, 3810, 3937, 4203, 4572, 4670, 5080, 5580, 5604, 5715, 7005, 7620, 7874, 8406, 9144, 9340, 11160, 11208, 11430, 11811, 14010, 14477, 15240, 15748, 16812, 18680, 19685, 21015, 22860, 23622, 28020, 28954, 31496, 33624, 35433, 39370, 42030, 43431, 45720, 47244, 56040, 57908, 59055, 59309, 70866, 72385, 78740, 84060, 86862, 94488, 115816, 118110, 118618, 130293, 141732, 144770, 157480, 168120, 173724, 177165, 177927, 217155, 236220, 237236, 260586, 283464, 289540, 296545, 347448, 354330, 355854, 434310, 472440, 474472, 521172, 533781, 579080, 593090, 651465, 708660, 711708, 868620, 889635, 1042344, 1067562, 1186180, 1302930, 1417320, 1423416, 1737240, 1779270, 1838579, 2135124, 2372360, 2605860, 2668905, 3558540, 3677158, 4270248, 5211720, 5337810, 5515737, 7117080, 7354316, 9192895, 10675620, 11031474, 14708632, 16547211, 18385790, 21351240, 22062948, 27578685, 33094422, 36771580, 44125896, 55157370, 66188844, 73543160, 82736055, 110314740, 132377688, 165472110, 220629480, 330944220, 661888440]

約数ペア:

[(1, 661888440), (2, 330944220), (3, 220629480), (4, 165472110), (5, 132377688), (6, 110314740), (8, 82736055), (9, 73543160), (10, 66188844), (12, 55157370), (15, 44125896), (18, 36771580), (20, 33094422), (24, 27578685), (30, 22062948), (31, 21351240), (36, 18385790), (40, 16547211), (45, 14708632), (60, 11031474), (62, 10675620), (72, 9192895), (90, 7354316), (93, 7117080), (120, 5515737), (124, 5337810), (127, 5211720), (155, 4270248), (180, 3677158), (186, 3558540), (248, 2668905), (254, 2605860), (279, 2372360), (310, 2135124), (360, 1838579), (372, 1779270), (381, 1737240), (465, 1423416), (467, 1417320), (508, 1302930), (558, 1186180), (620, 1067562), (635, 1042344), (744, 889635), (762, 868620), (930, 711708), (934, 708660), (1016, 651465), (1116, 593090), (1143, 579080), (1240, 533781), (1270, 521172), (1395, 474472), (1401, 472440), (1524, 434310), (1860, 355854), (1868, 354330), (1905, 347448), (2232, 296545), (2286, 289540), (2335, 283464), (2540, 260586), (2790, 237236), (2802, 236220), (3048, 217155), (3720, 177927), (3736, 177165), (3810, 173724), (3937, 168120), (4203, 157480), (4572, 144770), (4670, 141732), (5080, 130293), (5580, 118618), (5604, 118110), (5715, 115816), (7005, 94488), (7620, 86862), (7874, 84060), (8406, 78740), (9144, 72385), (9340, 70866), (11160, 59309), (11208, 59055), (11430, 57908), (11811, 56040), (14010, 47244), (14477, 45720), (15240, 43431), (15748, 42030), (16812, 39370), (18680, 35433), (19685, 33624), (21015, 31496), (22860, 28954), (23622, 28020)]