251915520

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{227}}^1$

素因数の和:285

約数の個数: 216

約数和(自身を含む): 858430944

約数和(自身を除く): 606515424

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 32, 34, 40, 48, 51, 60, 64, 68, 80, 85, 96, 102, 120, 128, 136, 160, 170, 192, 204, 227, 240, 255, 256, 272, 289, 320, 340, 384, 408, 454, 480, 510, 544, 578, 640, 680, 681, 768, 816, 867, 908, 960, 1020, 1088, 1135, 1156, 1280, 1360, 1362, 1445, 1632, 1734, 1816, 1920, 2040, 2176, 2270, 2312, 2720, 2724, 2890, 3264, 3405, 3468, 3632, 3840, 3859, 4080, 4335, 4352, 4540, 4624, 5440, 5448, 5780, 6528, 6810, 6936, 7264, 7718, 8160, 8670, 9080, 9248, 10880, 10896, 11560, 11577, 13056, 13620, 13872, 14528, 15436, 16320, 17340, 18160, 18496, 19295, 21760, 21792, 23120, 23154, 27240, 27744, 29056, 30872, 32640, 34680, 36320, 36992, 38590, 43584, 46240, 46308, 54480, 55488, 57885, 58112, 61744, 65280, 65603, 69360, 72640, 73984, 77180, 87168, 92480, 92616, 108960, 110976, 115770, 123488, 131206, 138720, 145280, 154360, 174336, 184960, 185232, 196809, 217920, 221952, 231540, 246976, 262412, 277440, 290560, 308720, 328015, 369920, 370464, 393618, 435840, 463080, 493952, 524824, 554880, 617440, 656030, 740928, 787236, 871680, 926160, 984045, 987904, 1049648, 1109760, 1234880, 1312060, 1481856, 1574472, 1852320, 1968090, 2099296, 2469760, 2624120, 2963712, 3148944, 3704640, 3936180, 4198592, 4939520, 5248240, 6297888, 7409280, 7872360, 8397184, 10496480, 12595776, 14818560, 15744720, 16794368, 20992960, 25191552, 31489440, 41985920, 50383104, 62978880, 83971840, 125957760, 251915520]

約数ペア:

[(1, 251915520), (2, 125957760), (3, 83971840), (4, 62978880), (5, 50383104), (6, 41985920), (8, 31489440), (10, 25191552), (12, 20992960), (15, 16794368), (16, 15744720), (17, 14818560), (20, 12595776), (24, 10496480), (30, 8397184), (32, 7872360), (34, 7409280), (40, 6297888), (48, 5248240), (51, 4939520), (60, 4198592), (64, 3936180), (68, 3704640), (80, 3148944), (85, 2963712), (96, 2624120), (102, 2469760), (120, 2099296), (128, 1968090), (136, 1852320), (160, 1574472), (170, 1481856), (192, 1312060), (204, 1234880), (227, 1109760), (240, 1049648), (255, 987904), (256, 984045), (272, 926160), (289, 871680), (320, 787236), (340, 740928), (384, 656030), (408, 617440), (454, 554880), (480, 524824), (510, 493952), (544, 463080), (578, 435840), (640, 393618), (680, 370464), (681, 369920), (768, 328015), (816, 308720), (867, 290560), (908, 277440), (960, 262412), (1020, 246976), (1088, 231540), (1135, 221952), (1156, 217920), (1280, 196809), (1360, 185232), (1362, 184960), (1445, 174336), (1632, 154360), (1734, 145280), (1816, 138720), (1920, 131206), (2040, 123488), (2176, 115770), (2270, 110976), (2312, 108960), (2720, 92616), (2724, 92480), (2890, 87168), (3264, 77180), (3405, 73984), (3468, 72640), (3632, 69360), (3840, 65603), (3859, 65280), (4080, 61744), (4335, 58112), (4352, 57885), (4540, 55488), (4624, 54480), (5440, 46308), (5448, 46240), (5780, 43584), (6528, 38590), (6810, 36992), (6936, 36320), (7264, 34680), (7718, 32640), (8160, 30872), (8670, 29056), (9080, 27744), (9248, 27240), (10880, 23154), (10896, 23120), (11560, 21792), (11577, 21760), (13056, 19295), (13620, 18496), (13872, 18160), (14528, 17340), (15436, 16320)]