257706120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:348

約数の個数: 256

約数和(自身を含む): 947865600

約数和(自身を除く): 690159480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 56, 57, 60, 67, 70, 76, 84, 95, 105, 114, 120, 133, 134, 140, 152, 168, 190, 201, 210, 228, 241, 266, 268, 280, 285, 335, 380, 399, 402, 420, 456, 469, 482, 532, 536, 570, 665, 670, 723, 760, 798, 804, 840, 938, 964, 1005, 1064, 1140, 1205, 1273, 1330, 1340, 1407, 1446, 1596, 1608, 1687, 1876, 1928, 1995, 2010, 2280, 2345, 2410, 2546, 2660, 2680, 2814, 2892, 3192, 3374, 3615, 3752, 3819, 3990, 4020, 4579, 4690, 4820, 5061, 5092, 5320, 5628, 5784, 6365, 6748, 7035, 7230, 7638, 7980, 8040, 8435, 8911, 9158, 9380, 9640, 10122, 10184, 11256, 12730, 13496, 13737, 14070, 14460, 15276, 15960, 16147, 16870, 17822, 18316, 18760, 19095, 20244, 22895, 25305, 25460, 26733, 27474, 28140, 28920, 30552, 32053, 32294, 33740, 35644, 36632, 38190, 40488, 44555, 45790, 48441, 50610, 50920, 53466, 54948, 56280, 64106, 64588, 67480, 68685, 71288, 76380, 80735, 89110, 91580, 96159, 96882, 101220, 106932, 109896, 113029, 128212, 129176, 133665, 137370, 152760, 160265, 161470, 178220, 183160, 192318, 193764, 202440, 213864, 226058, 242205, 256424, 267330, 274740, 306793, 320530, 322940, 339087, 356440, 384636, 387528, 452116, 480795, 484410, 534660, 549480, 565145, 613586, 641060, 645880, 678174, 769272, 904232, 920379, 961590, 968820, 1069320, 1130290, 1227172, 1282120, 1356348, 1533965, 1695435, 1840758, 1923180, 1937640, 2147551, 2260580, 2454344, 2712696, 3067930, 3390870, 3681516, 3846360, 4295102, 4521160, 4601895, 6135860, 6442653, 6781740, 7363032, 8590204, 9203790, 10737755, 12271720, 12885306, 13563480, 17180408, 18407580, 21475510, 25770612, 32213265, 36815160, 42951020, 51541224, 64426530, 85902040, 128853060, 257706120]

約数ペア:

[(1, 257706120), (2, 128853060), (3, 85902040), (4, 64426530), (5, 51541224), (6, 42951020), (7, 36815160), (8, 32213265), (10, 25770612), (12, 21475510), (14, 18407580), (15, 17180408), (19, 13563480), (20, 12885306), (21, 12271720), (24, 10737755), (28, 9203790), (30, 8590204), (35, 7363032), (38, 6781740), (40, 6442653), (42, 6135860), (56, 4601895), (57, 4521160), (60, 4295102), (67, 3846360), (70, 3681516), (76, 3390870), (84, 3067930), (95, 2712696), (105, 2454344), (114, 2260580), (120, 2147551), (133, 1937640), (134, 1923180), (140, 1840758), (152, 1695435), (168, 1533965), (190, 1356348), (201, 1282120), (210, 1227172), (228, 1130290), (241, 1069320), (266, 968820), (268, 961590), (280, 920379), (285, 904232), (335, 769272), (380, 678174), (399, 645880), (402, 641060), (420, 613586), (456, 565145), (469, 549480), (482, 534660), (532, 484410), (536, 480795), (570, 452116), (665, 387528), (670, 384636), (723, 356440), (760, 339087), (798, 322940), (804, 320530), (840, 306793), (938, 274740), (964, 267330), (1005, 256424), (1064, 242205), (1140, 226058), (1205, 213864), (1273, 202440), (1330, 193764), (1340, 192318), (1407, 183160), (1446, 178220), (1596, 161470), (1608, 160265), (1687, 152760), (1876, 137370), (1928, 133665), (1995, 129176), (2010, 128212), (2280, 113029), (2345, 109896), (2410, 106932), (2546, 101220), (2660, 96882), (2680, 96159), (2814, 91580), (2892, 89110), (3192, 80735), (3374, 76380), (3615, 71288), (3752, 68685), (3819, 67480), (3990, 64588), (4020, 64106), (4579, 56280), (4690, 54948), (4820, 53466), (5061, 50920), (5092, 50610), (5320, 48441), (5628, 45790), (5784, 44555), (6365, 40488), (6748, 38190), (7035, 36632), (7230, 35644), (7638, 33740), (7980, 32294), (8040, 32053), (8435, 30552), (8911, 28920), (9158, 28140), (9380, 27474), (9640, 26733), (10122, 25460), (10184, 25305), (11256, 22895), (12730, 20244), (13496, 19095), (13737, 18760), (14070, 18316), (14460, 17822), (15276, 16870), (15960, 16147)]