261431520

素因数分解:

$2^5\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{2683}}^1$

素因数の和:2737

約数の個数: 192

約数和(自身を含む): 973969920

約数和(自身を除く): 712538400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 29, 30, 32, 35, 40, 42, 48, 56, 58, 60, 70, 80, 84, 87, 96, 105, 112, 116, 120, 140, 145, 160, 168, 174, 203, 210, 224, 232, 240, 280, 290, 336, 348, 406, 420, 435, 464, 480, 560, 580, 609, 672, 696, 812, 840, 870, 928, 1015, 1120, 1160, 1218, 1392, 1624, 1680, 1740, 2030, 2320, 2436, 2683, 2784, 3045, 3248, 3360, 3480, 4060, 4640, 4872, 5366, 6090, 6496, 6960, 8049, 8120, 9744, 10732, 12180, 13415, 13920, 16098, 16240, 18781, 19488, 21464, 24360, 26830, 32196, 32480, 37562, 40245, 42928, 48720, 53660, 56343, 64392, 75124, 77807, 80490, 85856, 93905, 97440, 107320, 112686, 128784, 150248, 155614, 160980, 187810, 214640, 225372, 233421, 257568, 281715, 300496, 311228, 321960, 375620, 389035, 429280, 450744, 466842, 544649, 563430, 600992, 622456, 643920, 751240, 778070, 901488, 933684, 1089298, 1126860, 1167105, 1244912, 1287840, 1502480, 1556140, 1633947, 1802976, 1867368, 2178596, 2253720, 2334210, 2489824, 2723245, 3004960, 3112280, 3267894, 3734736, 4357192, 4507440, 4668420, 5446490, 6224560, 6535788, 7469472, 8169735, 8714384, 9014880, 9336840, 10892980, 12449120, 13071576, 16339470, 17428768, 18673680, 21785960, 26143152, 32678940, 37347360, 43571920, 52286304, 65357880, 87143840, 130715760, 261431520]

約数ペア:

[(1, 261431520), (2, 130715760), (3, 87143840), (4, 65357880), (5, 52286304), (6, 43571920), (7, 37347360), (8, 32678940), (10, 26143152), (12, 21785960), (14, 18673680), (15, 17428768), (16, 16339470), (20, 13071576), (21, 12449120), (24, 10892980), (28, 9336840), (29, 9014880), (30, 8714384), (32, 8169735), (35, 7469472), (40, 6535788), (42, 6224560), (48, 5446490), (56, 4668420), (58, 4507440), (60, 4357192), (70, 3734736), (80, 3267894), (84, 3112280), (87, 3004960), (96, 2723245), (105, 2489824), (112, 2334210), (116, 2253720), (120, 2178596), (140, 1867368), (145, 1802976), (160, 1633947), (168, 1556140), (174, 1502480), (203, 1287840), (210, 1244912), (224, 1167105), (232, 1126860), (240, 1089298), (280, 933684), (290, 901488), (336, 778070), (348, 751240), (406, 643920), (420, 622456), (435, 600992), (464, 563430), (480, 544649), (560, 466842), (580, 450744), (609, 429280), (672, 389035), (696, 375620), (812, 321960), (840, 311228), (870, 300496), (928, 281715), (1015, 257568), (1120, 233421), (1160, 225372), (1218, 214640), (1392, 187810), (1624, 160980), (1680, 155614), (1740, 150248), (2030, 128784), (2320, 112686), (2436, 107320), (2683, 97440), (2784, 93905), (3045, 85856), (3248, 80490), (3360, 77807), (3480, 75124), (4060, 64392), (4640, 56343), (4872, 53660), (5366, 48720), (6090, 42928), (6496, 40245), (6960, 37562), (8049, 32480), (8120, 32196), (9744, 26830), (10732, 24360), (12180, 21464), (13415, 19488), (13920, 18781), (16098, 16240)]