257606280

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{563}}^1$

素因数の和:652

約数の個数: 192

約数和(自身を含む): 886878720

約数和(自身を除く): 629272440

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 31, 36, 40, 41, 45, 60, 62, 72, 82, 90, 93, 120, 123, 124, 155, 164, 180, 186, 205, 246, 248, 279, 310, 328, 360, 369, 372, 410, 465, 492, 558, 563, 615, 620, 738, 744, 820, 930, 984, 1116, 1126, 1230, 1240, 1271, 1395, 1476, 1640, 1689, 1845, 1860, 2232, 2252, 2460, 2542, 2790, 2815, 2952, 3378, 3690, 3720, 3813, 4504, 4920, 5067, 5084, 5580, 5630, 6355, 6756, 7380, 7626, 8445, 10134, 10168, 11160, 11260, 11439, 12710, 13512, 14760, 15252, 16890, 17453, 19065, 20268, 22520, 22878, 23083, 25335, 25420, 30504, 33780, 34906, 38130, 40536, 45756, 46166, 50670, 50840, 52359, 57195, 67560, 69249, 69812, 76260, 87265, 91512, 92332, 101340, 104718, 114390, 115415, 138498, 139624, 152520, 157077, 174530, 184664, 202680, 207747, 209436, 228780, 230830, 261795, 276996, 314154, 346245, 349060, 415494, 418872, 457560, 461660, 523590, 553992, 628308, 692490, 698120, 715573, 785385, 830988, 923320, 1038735, 1047180, 1256616, 1384980, 1431146, 1570770, 1661976, 2077470, 2094360, 2146719, 2769960, 2862292, 3141540, 3577865, 4154940, 4293438, 5724584, 6283080, 6440157, 7155730, 8309880, 8586876, 10733595, 12880314, 14311460, 17173752, 21467190, 25760628, 28622920, 32200785, 42934380, 51521256, 64401570, 85868760, 128803140, 257606280]

約数ペア:

[(1, 257606280), (2, 128803140), (3, 85868760), (4, 64401570), (5, 51521256), (6, 42934380), (8, 32200785), (9, 28622920), (10, 25760628), (12, 21467190), (15, 17173752), (18, 14311460), (20, 12880314), (24, 10733595), (30, 8586876), (31, 8309880), (36, 7155730), (40, 6440157), (41, 6283080), (45, 5724584), (60, 4293438), (62, 4154940), (72, 3577865), (82, 3141540), (90, 2862292), (93, 2769960), (120, 2146719), (123, 2094360), (124, 2077470), (155, 1661976), (164, 1570770), (180, 1431146), (186, 1384980), (205, 1256616), (246, 1047180), (248, 1038735), (279, 923320), (310, 830988), (328, 785385), (360, 715573), (369, 698120), (372, 692490), (410, 628308), (465, 553992), (492, 523590), (558, 461660), (563, 457560), (615, 418872), (620, 415494), (738, 349060), (744, 346245), (820, 314154), (930, 276996), (984, 261795), (1116, 230830), (1126, 228780), (1230, 209436), (1240, 207747), (1271, 202680), (1395, 184664), (1476, 174530), (1640, 157077), (1689, 152520), (1845, 139624), (1860, 138498), (2232, 115415), (2252, 114390), (2460, 104718), (2542, 101340), (2790, 92332), (2815, 91512), (2952, 87265), (3378, 76260), (3690, 69812), (3720, 69249), (3813, 67560), (4504, 57195), (4920, 52359), (5067, 50840), (5084, 50670), (5580, 46166), (5630, 45756), (6355, 40536), (6756, 38130), (7380, 34906), (7626, 33780), (8445, 30504), (10134, 25420), (10168, 25335), (11160, 23083), (11260, 22878), (11439, 22520), (12710, 20268), (13512, 19065), (14760, 17453), (15252, 16890)]