205314720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2531}}^1$

素因数の和:2575

約数の個数: 144

約数和(自身を含む): 700594272

約数和(自身を除く): 495279552

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 169, 195, 208, 240, 260, 312, 338, 390, 416, 480, 507, 520, 624, 676, 780, 845, 1014, 1040, 1248, 1352, 1560, 1690, 2028, 2080, 2531, 2535, 2704, 3120, 3380, 4056, 5062, 5070, 5408, 6240, 6760, 7593, 8112, 10124, 10140, 12655, 13520, 15186, 16224, 20248, 20280, 25310, 27040, 30372, 32903, 37965, 40496, 40560, 50620, 60744, 65806, 75930, 80992, 81120, 98709, 101240, 121488, 131612, 151860, 164515, 197418, 202480, 242976, 263224, 303720, 329030, 394836, 404960, 427739, 493545, 526448, 607440, 658060, 789672, 855478, 987090, 1052896, 1214880, 1283217, 1316120, 1579344, 1710956, 1974180, 2138695, 2566434, 2632240, 3158688, 3421912, 3948360, 4277390, 5132868, 5264480, 6416085, 6843824, 7896720, 8554780, 10265736, 12832170, 13687648, 15793440, 17109560, 20531472, 25664340, 34219120, 41062944, 51328680, 68438240, 102657360, 205314720]

約数ペア:

[(1, 205314720), (2, 102657360), (3, 68438240), (4, 51328680), (5, 41062944), (6, 34219120), (8, 25664340), (10, 20531472), (12, 17109560), (13, 15793440), (15, 13687648), (16, 12832170), (20, 10265736), (24, 8554780), (26, 7896720), (30, 6843824), (32, 6416085), (39, 5264480), (40, 5132868), (48, 4277390), (52, 3948360), (60, 3421912), (65, 3158688), (78, 2632240), (80, 2566434), (96, 2138695), (104, 1974180), (120, 1710956), (130, 1579344), (156, 1316120), (160, 1283217), (169, 1214880), (195, 1052896), (208, 987090), (240, 855478), (260, 789672), (312, 658060), (338, 607440), (390, 526448), (416, 493545), (480, 427739), (507, 404960), (520, 394836), (624, 329030), (676, 303720), (780, 263224), (845, 242976), (1014, 202480), (1040, 197418), (1248, 164515), (1352, 151860), (1560, 131612), (1690, 121488), (2028, 101240), (2080, 98709), (2531, 81120), (2535, 80992), (2704, 75930), (3120, 65806), (3380, 60744), (4056, 50620), (5062, 40560), (5070, 40496), (5408, 37965), (6240, 32903), (6760, 30372), (7593, 27040), (8112, 25310), (10124, 20280), (10140, 20248), (12655, 16224), (13520, 15186)]