257309280

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{457}}^1$

素因数の和:518

約数の個数: 288

約数和(自身を含む): 972264384

約数和(自身を除く): 714955104

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 23, 24, 30, 32, 34, 36, 40, 45, 46, 48, 51, 60, 68, 69, 72, 80, 85, 90, 92, 96, 102, 115, 120, 136, 138, 144, 153, 160, 170, 180, 184, 204, 207, 230, 240, 255, 272, 276, 288, 306, 340, 345, 360, 368, 391, 408, 414, 457, 460, 480, 510, 544, 552, 612, 680, 690, 720, 736, 765, 782, 816, 828, 914, 920, 1020, 1035, 1104, 1173, 1224, 1360, 1371, 1380, 1440, 1530, 1564, 1632, 1656, 1828, 1840, 1955, 2040, 2070, 2208, 2285, 2346, 2448, 2720, 2742, 2760, 3060, 3128, 3312, 3519, 3656, 3680, 3910, 4080, 4113, 4140, 4570, 4692, 4896, 5484, 5520, 5865, 6120, 6256, 6624, 6855, 7038, 7312, 7769, 7820, 8160, 8226, 8280, 9140, 9384, 10511, 10968, 11040, 11730, 12240, 12512, 13710, 14076, 14624, 15538, 15640, 16452, 16560, 17595, 18280, 18768, 20565, 21022, 21936, 23307, 23460, 24480, 27420, 28152, 31076, 31280, 31533, 32904, 33120, 35190, 36560, 37536, 38845, 41130, 42044, 43872, 46614, 46920, 52555, 54840, 56304, 62152, 62560, 63066, 65808, 69921, 70380, 73120, 77690, 82260, 84088, 93228, 93840, 94599, 105110, 109680, 112608, 116535, 124304, 126132, 131616, 139842, 140760, 155380, 157665, 164520, 168176, 178687, 186456, 187680, 189198, 210220, 219360, 233070, 248608, 252264, 279684, 281520, 310760, 315330, 329040, 336352, 349605, 357374, 372912, 378396, 420440, 466140, 472995, 504528, 536061, 559368, 563040, 621520, 630660, 658080, 699210, 714748, 745824, 756792, 840880, 893435, 932280, 945990, 1009056, 1072122, 1118736, 1243040, 1261320, 1398420, 1429496, 1513584, 1608183, 1681760, 1786870, 1864560, 1891980, 2144244, 2237472, 2522640, 2680305, 2796840, 2858992, 3027168, 3216366, 3573740, 3729120, 3783960, 4288488, 5045280, 5360610, 5593680, 5717984, 6432732, 7147480, 7567920, 8040915, 8576976, 10721220, 11187360, 12865464, 14294960, 15135840, 16081830, 17153952, 21442440, 25730928, 28589920, 32163660, 42884880, 51461856, 64327320, 85769760, 128654640, 257309280]

約数ペア:

[(1, 257309280), (2, 128654640), (3, 85769760), (4, 64327320), (5, 51461856), (6, 42884880), (8, 32163660), (9, 28589920), (10, 25730928), (12, 21442440), (15, 17153952), (16, 16081830), (17, 15135840), (18, 14294960), (20, 12865464), (23, 11187360), (24, 10721220), (30, 8576976), (32, 8040915), (34, 7567920), (36, 7147480), (40, 6432732), (45, 5717984), (46, 5593680), (48, 5360610), (51, 5045280), (60, 4288488), (68, 3783960), (69, 3729120), (72, 3573740), (80, 3216366), (85, 3027168), (90, 2858992), (92, 2796840), (96, 2680305), (102, 2522640), (115, 2237472), (120, 2144244), (136, 1891980), (138, 1864560), (144, 1786870), (153, 1681760), (160, 1608183), (170, 1513584), (180, 1429496), (184, 1398420), (204, 1261320), (207, 1243040), (230, 1118736), (240, 1072122), (255, 1009056), (272, 945990), (276, 932280), (288, 893435), (306, 840880), (340, 756792), (345, 745824), (360, 714748), (368, 699210), (391, 658080), (408, 630660), (414, 621520), (457, 563040), (460, 559368), (480, 536061), (510, 504528), (544, 472995), (552, 466140), (612, 420440), (680, 378396), (690, 372912), (720, 357374), (736, 349605), (765, 336352), (782, 329040), (816, 315330), (828, 310760), (914, 281520), (920, 279684), (1020, 252264), (1035, 248608), (1104, 233070), (1173, 219360), (1224, 210220), (1360, 189198), (1371, 187680), (1380, 186456), (1440, 178687), (1530, 168176), (1564, 164520), (1632, 157665), (1656, 155380), (1828, 140760), (1840, 139842), (1955, 131616), (2040, 126132), (2070, 124304), (2208, 116535), (2285, 112608), (2346, 109680), (2448, 105110), (2720, 94599), (2742, 93840), (2760, 93228), (3060, 84088), (3128, 82260), (3312, 77690), (3519, 73120), (3656, 70380), (3680, 69921), (3910, 65808), (4080, 63066), (4113, 62560), (4140, 62152), (4570, 56304), (4692, 54840), (4896, 52555), (5484, 46920), (5520, 46614), (5865, 43872), (6120, 42044), (6256, 41130), (6624, 38845), (6855, 37536), (7038, 36560), (7312, 35190), (7769, 33120), (7820, 32904), (8160, 31533), (8226, 31280), (8280, 31076), (9140, 28152), (9384, 27420), (10511, 24480), (10968, 23460), (11040, 23307), (11730, 21936), (12240, 21022), (12512, 20565), (13710, 18768), (14076, 18280), (14624, 17595), (15538, 16560), (15640, 16452)]