257148720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:372

約数の個数: 240

約数和(自身を含む): 916441344

約数和(自身を除く): 659292624

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 36, 40, 41, 45, 48, 60, 62, 72, 80, 82, 90, 93, 120, 123, 124, 144, 155, 164, 180, 186, 205, 240, 246, 248, 279, 281, 310, 328, 360, 369, 372, 410, 465, 492, 496, 558, 562, 615, 620, 656, 720, 738, 744, 820, 843, 930, 984, 1116, 1124, 1230, 1240, 1271, 1395, 1405, 1476, 1488, 1640, 1686, 1845, 1860, 1968, 2232, 2248, 2460, 2480, 2529, 2542, 2790, 2810, 2952, 3280, 3372, 3690, 3720, 3813, 4215, 4464, 4496, 4920, 5058, 5084, 5580, 5620, 5904, 6355, 6744, 7380, 7440, 7626, 8430, 8711, 9840, 10116, 10168, 11160, 11240, 11439, 11521, 12645, 12710, 13488, 14760, 15252, 16860, 17422, 19065, 20232, 20336, 22320, 22480, 22878, 23042, 25290, 25420, 26133, 29520, 30504, 33720, 34563, 34844, 38130, 40464, 43555, 45756, 46084, 50580, 50840, 52266, 57195, 57605, 61008, 67440, 69126, 69688, 76260, 78399, 87110, 91512, 92168, 101160, 101680, 103689, 104532, 114390, 115210, 130665, 138252, 139376, 152520, 156798, 172815, 174220, 183024, 184336, 202320, 207378, 209064, 228780, 230420, 261330, 276504, 305040, 313596, 345630, 348440, 357151, 391995, 414756, 418128, 457560, 460840, 518445, 522660, 553008, 627192, 691260, 696880, 714302, 783990, 829512, 915120, 921680, 1036890, 1045320, 1071453, 1254384, 1382520, 1428604, 1567980, 1659024, 1785755, 2073780, 2090640, 2142906, 2765040, 2857208, 3135960, 3214359, 3571510, 4147560, 4285812, 5357265, 5714416, 6271920, 6428718, 7143020, 8295120, 8571624, 10714530, 12857436, 14286040, 16071795, 17143248, 21429060, 25714872, 28572080, 32143590, 42858120, 51429744, 64287180, 85716240, 128574360, 257148720]

約数ペア:

[(1, 257148720), (2, 128574360), (3, 85716240), (4, 64287180), (5, 51429744), (6, 42858120), (8, 32143590), (9, 28572080), (10, 25714872), (12, 21429060), (15, 17143248), (16, 16071795), (18, 14286040), (20, 12857436), (24, 10714530), (30, 8571624), (31, 8295120), (36, 7143020), (40, 6428718), (41, 6271920), (45, 5714416), (48, 5357265), (60, 4285812), (62, 4147560), (72, 3571510), (80, 3214359), (82, 3135960), (90, 2857208), (93, 2765040), (120, 2142906), (123, 2090640), (124, 2073780), (144, 1785755), (155, 1659024), (164, 1567980), (180, 1428604), (186, 1382520), (205, 1254384), (240, 1071453), (246, 1045320), (248, 1036890), (279, 921680), (281, 915120), (310, 829512), (328, 783990), (360, 714302), (369, 696880), (372, 691260), (410, 627192), (465, 553008), (492, 522660), (496, 518445), (558, 460840), (562, 457560), (615, 418128), (620, 414756), (656, 391995), (720, 357151), (738, 348440), (744, 345630), (820, 313596), (843, 305040), (930, 276504), (984, 261330), (1116, 230420), (1124, 228780), (1230, 209064), (1240, 207378), (1271, 202320), (1395, 184336), (1405, 183024), (1476, 174220), (1488, 172815), (1640, 156798), (1686, 152520), (1845, 139376), (1860, 138252), (1968, 130665), (2232, 115210), (2248, 114390), (2460, 104532), (2480, 103689), (2529, 101680), (2542, 101160), (2790, 92168), (2810, 91512), (2952, 87110), (3280, 78399), (3372, 76260), (3690, 69688), (3720, 69126), (3813, 67440), (4215, 61008), (4464, 57605), (4496, 57195), (4920, 52266), (5058, 50840), (5084, 50580), (5580, 46084), (5620, 45756), (5904, 43555), (6355, 40464), (6744, 38130), (7380, 34844), (7440, 34563), (7626, 33720), (8430, 30504), (8711, 29520), (9840, 26133), (10116, 25420), (10168, 25290), (11160, 23042), (11240, 22878), (11439, 22480), (11521, 22320), (12645, 20336), (12710, 20232), (13488, 19065), (14760, 17422), (15252, 16860)]