256420320

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:182

約数の個数: 288

約数和(自身を含む): 913096800

約数和(自身を除く): 656676480

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 29, 30, 32, 39, 40, 48, 52, 58, 60, 65, 78, 80, 87, 96, 104, 109, 116, 120, 130, 145, 156, 160, 169, 174, 195, 208, 218, 232, 240, 260, 290, 312, 327, 338, 348, 377, 390, 416, 435, 436, 464, 480, 507, 520, 545, 580, 624, 654, 676, 696, 754, 780, 845, 870, 872, 928, 1014, 1040, 1090, 1131, 1160, 1248, 1308, 1352, 1392, 1417, 1508, 1560, 1635, 1690, 1740, 1744, 1885, 2028, 2080, 2180, 2262, 2320, 2535, 2616, 2704, 2784, 2834, 3016, 3120, 3161, 3270, 3380, 3480, 3488, 3770, 4056, 4251, 4360, 4524, 4640, 4901, 5070, 5232, 5408, 5655, 5668, 6032, 6240, 6322, 6540, 6760, 6960, 7085, 7540, 8112, 8502, 8720, 9048, 9483, 9802, 10140, 10464, 11310, 11336, 12064, 12644, 13080, 13520, 13920, 14170, 14703, 15080, 15805, 16224, 17004, 17440, 18096, 18421, 18966, 19604, 20280, 21255, 22620, 22672, 24505, 25288, 26160, 27040, 28340, 29406, 30160, 31610, 34008, 36192, 36842, 37932, 39208, 40560, 41093, 42510, 45240, 45344, 47415, 49010, 50576, 52320, 55263, 56680, 58812, 60320, 63220, 68016, 73515, 73684, 75864, 78416, 81120, 82186, 85020, 90480, 92105, 94830, 98020, 101152, 110526, 113360, 117624, 123279, 126440, 136032, 147030, 147368, 151728, 156832, 164372, 170040, 180960, 184210, 189660, 196040, 205465, 221052, 226720, 235248, 246558, 252880, 276315, 294060, 294736, 303456, 328744, 340080, 368420, 379320, 392080, 410930, 442104, 470496, 493116, 505760, 534209, 552630, 588120, 589472, 616395, 657488, 680160, 736840, 758640, 784160, 821860, 884208, 986232, 1068418, 1105260, 1176240, 1232790, 1314976, 1473680, 1517280, 1602627, 1643720, 1768416, 1972464, 2136836, 2210520, 2352480, 2465580, 2671045, 2947360, 3205254, 3287440, 3944928, 4273672, 4421040, 4931160, 5342090, 6410508, 6574880, 8013135, 8547344, 8842080, 9862320, 10684180, 12821016, 16026270, 17094688, 19724640, 21368360, 25642032, 32052540, 42736720, 51284064, 64105080, 85473440, 128210160, 256420320]

約数ペア:

[(1, 256420320), (2, 128210160), (3, 85473440), (4, 64105080), (5, 51284064), (6, 42736720), (8, 32052540), (10, 25642032), (12, 21368360), (13, 19724640), (15, 17094688), (16, 16026270), (20, 12821016), (24, 10684180), (26, 9862320), (29, 8842080), (30, 8547344), (32, 8013135), (39, 6574880), (40, 6410508), (48, 5342090), (52, 4931160), (58, 4421040), (60, 4273672), (65, 3944928), (78, 3287440), (80, 3205254), (87, 2947360), (96, 2671045), (104, 2465580), (109, 2352480), (116, 2210520), (120, 2136836), (130, 1972464), (145, 1768416), (156, 1643720), (160, 1602627), (169, 1517280), (174, 1473680), (195, 1314976), (208, 1232790), (218, 1176240), (232, 1105260), (240, 1068418), (260, 986232), (290, 884208), (312, 821860), (327, 784160), (338, 758640), (348, 736840), (377, 680160), (390, 657488), (416, 616395), (435, 589472), (436, 588120), (464, 552630), (480, 534209), (507, 505760), (520, 493116), (545, 470496), (580, 442104), (624, 410930), (654, 392080), (676, 379320), (696, 368420), (754, 340080), (780, 328744), (845, 303456), (870, 294736), (872, 294060), (928, 276315), (1014, 252880), (1040, 246558), (1090, 235248), (1131, 226720), (1160, 221052), (1248, 205465), (1308, 196040), (1352, 189660), (1392, 184210), (1417, 180960), (1508, 170040), (1560, 164372), (1635, 156832), (1690, 151728), (1740, 147368), (1744, 147030), (1885, 136032), (2028, 126440), (2080, 123279), (2180, 117624), (2262, 113360), (2320, 110526), (2535, 101152), (2616, 98020), (2704, 94830), (2784, 92105), (2834, 90480), (3016, 85020), (3120, 82186), (3161, 81120), (3270, 78416), (3380, 75864), (3480, 73684), (3488, 73515), (3770, 68016), (4056, 63220), (4251, 60320), (4360, 58812), (4524, 56680), (4640, 55263), (4901, 52320), (5070, 50576), (5232, 49010), (5408, 47415), (5655, 45344), (5668, 45240), (6032, 42510), (6240, 41093), (6322, 40560), (6540, 39208), (6760, 37932), (6960, 36842), (7085, 36192), (7540, 34008), (8112, 31610), (8502, 30160), (8720, 29406), (9048, 28340), (9483, 27040), (9802, 26160), (10140, 25288), (10464, 24505), (11310, 22672), (11336, 22620), (12064, 21255), (12644, 20280), (13080, 19604), (13520, 18966), (13920, 18421), (14170, 18096), (14703, 17440), (15080, 17004), (15805, 16224)]