257313420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{683}}^1$

素因数の和:741

約数の個数: 288

約数和(自身を含む): 1003871232

約数和(自身を除く): 746557812

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 23, 26, 28, 30, 35, 36, 39, 42, 45, 46, 52, 60, 63, 65, 69, 70, 78, 84, 90, 91, 92, 105, 115, 117, 126, 130, 138, 140, 156, 161, 180, 182, 195, 207, 210, 230, 234, 252, 260, 273, 276, 299, 315, 322, 345, 364, 390, 414, 420, 455, 460, 468, 483, 546, 585, 598, 630, 644, 683, 690, 780, 805, 819, 828, 897, 910, 966, 1035, 1092, 1170, 1196, 1260, 1365, 1366, 1380, 1449, 1495, 1610, 1638, 1794, 1820, 1932, 2049, 2070, 2093, 2340, 2415, 2691, 2730, 2732, 2898, 2990, 3220, 3276, 3415, 3588, 4095, 4098, 4140, 4186, 4485, 4781, 4830, 5382, 5460, 5796, 5980, 6147, 6279, 6830, 7245, 8190, 8196, 8372, 8879, 8970, 9562, 9660, 10245, 10465, 10764, 12294, 12558, 13455, 13660, 14343, 14490, 15709, 16380, 17758, 17940, 18837, 19124, 20490, 20930, 23905, 24588, 25116, 26637, 26910, 28686, 28980, 30735, 31395, 31418, 35516, 37674, 40980, 41860, 43029, 44395, 47127, 47810, 53274, 53820, 57372, 61470, 62153, 62790, 62836, 71715, 75348, 78545, 79911, 86058, 88790, 94185, 94254, 95620, 106548, 109963, 122940, 124306, 125580, 133185, 141381, 143430, 157090, 159822, 172116, 177580, 186459, 188370, 188508, 204217, 215145, 219926, 235635, 248612, 266370, 282762, 286860, 310765, 314180, 319644, 329889, 372918, 376740, 399555, 408434, 430290, 439852, 471270, 532740, 549815, 559377, 565524, 612651, 621530, 659778, 706905, 745836, 799110, 816868, 860580, 932295, 942540, 989667, 1021085, 1099630, 1118754, 1225302, 1243060, 1319556, 1413810, 1429519, 1598220, 1649445, 1837953, 1864590, 1979334, 2042170, 2199260, 2237508, 2450604, 2796885, 2827620, 2859038, 3063255, 3298890, 3675906, 3729180, 3958668, 4084340, 4288557, 4948335, 5593770, 5718076, 6126510, 6597780, 7147595, 7351812, 8577114, 9189765, 9896670, 11187540, 12253020, 12865671, 14295190, 17154228, 18379530, 19793340, 21442785, 25731342, 28590380, 36759060, 42885570, 51462684, 64328355, 85771140, 128656710, 257313420]

約数ペア:

[(1, 257313420), (2, 128656710), (3, 85771140), (4, 64328355), (5, 51462684), (6, 42885570), (7, 36759060), (9, 28590380), (10, 25731342), (12, 21442785), (13, 19793340), (14, 18379530), (15, 17154228), (18, 14295190), (20, 12865671), (21, 12253020), (23, 11187540), (26, 9896670), (28, 9189765), (30, 8577114), (35, 7351812), (36, 7147595), (39, 6597780), (42, 6126510), (45, 5718076), (46, 5593770), (52, 4948335), (60, 4288557), (63, 4084340), (65, 3958668), (69, 3729180), (70, 3675906), (78, 3298890), (84, 3063255), (90, 2859038), (91, 2827620), (92, 2796885), (105, 2450604), (115, 2237508), (117, 2199260), (126, 2042170), (130, 1979334), (138, 1864590), (140, 1837953), (156, 1649445), (161, 1598220), (180, 1429519), (182, 1413810), (195, 1319556), (207, 1243060), (210, 1225302), (230, 1118754), (234, 1099630), (252, 1021085), (260, 989667), (273, 942540), (276, 932295), (299, 860580), (315, 816868), (322, 799110), (345, 745836), (364, 706905), (390, 659778), (414, 621530), (420, 612651), (455, 565524), (460, 559377), (468, 549815), (483, 532740), (546, 471270), (585, 439852), (598, 430290), (630, 408434), (644, 399555), (683, 376740), (690, 372918), (780, 329889), (805, 319644), (819, 314180), (828, 310765), (897, 286860), (910, 282762), (966, 266370), (1035, 248612), (1092, 235635), (1170, 219926), (1196, 215145), (1260, 204217), (1365, 188508), (1366, 188370), (1380, 186459), (1449, 177580), (1495, 172116), (1610, 159822), (1638, 157090), (1794, 143430), (1820, 141381), (1932, 133185), (2049, 125580), (2070, 124306), (2093, 122940), (2340, 109963), (2415, 106548), (2691, 95620), (2730, 94254), (2732, 94185), (2898, 88790), (2990, 86058), (3220, 79911), (3276, 78545), (3415, 75348), (3588, 71715), (4095, 62836), (4098, 62790), (4140, 62153), (4186, 61470), (4485, 57372), (4781, 53820), (4830, 53274), (5382, 47810), (5460, 47127), (5796, 44395), (5980, 43029), (6147, 41860), (6279, 40980), (6830, 37674), (7245, 35516), (8190, 31418), (8196, 31395), (8372, 30735), (8879, 28980), (8970, 28686), (9562, 26910), (9660, 26637), (10245, 25116), (10465, 24588), (10764, 23905), (12294, 20930), (12558, 20490), (13455, 19124), (13660, 18837), (14343, 17940), (14490, 17758), (15709, 16380)]