256128600

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4691}}^1$

素因数の和:4730

約数の個数: 192

約数和(自身を含む): 977437440

約数和(自身を除く): 721308840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 25, 26, 28, 30, 35, 39, 40, 42, 50, 52, 56, 60, 65, 70, 75, 78, 84, 91, 100, 104, 105, 120, 130, 140, 150, 156, 168, 175, 182, 195, 200, 210, 260, 273, 280, 300, 312, 325, 350, 364, 390, 420, 455, 520, 525, 546, 600, 650, 700, 728, 780, 840, 910, 975, 1050, 1092, 1300, 1365, 1400, 1560, 1820, 1950, 2100, 2184, 2275, 2600, 2730, 3640, 3900, 4200, 4550, 4691, 5460, 6825, 7800, 9100, 9382, 10920, 13650, 14073, 18200, 18764, 23455, 27300, 28146, 32837, 37528, 46910, 54600, 56292, 60983, 65674, 70365, 93820, 98511, 112584, 117275, 121966, 131348, 140730, 164185, 182949, 187640, 197022, 234550, 243932, 262696, 281460, 304915, 328370, 351825, 365898, 394044, 426881, 469100, 487864, 492555, 562920, 609830, 656740, 703650, 731796, 788088, 820925, 853762, 914745, 938200, 985110, 1219660, 1280643, 1313480, 1407300, 1463592, 1524575, 1641850, 1707524, 1829490, 1970220, 2134405, 2439320, 2462775, 2561286, 2814600, 3049150, 3283700, 3415048, 3658980, 3940440, 4268810, 4573725, 4925550, 5122572, 6098300, 6403215, 6567400, 7317960, 8537620, 9147450, 9851100, 10245144, 10672025, 12196600, 12806430, 17075240, 18294900, 19702200, 21344050, 25612860, 32016075, 36589800, 42688100, 51225720, 64032150, 85376200, 128064300, 256128600]

約数ペア:

[(1, 256128600), (2, 128064300), (3, 85376200), (4, 64032150), (5, 51225720), (6, 42688100), (7, 36589800), (8, 32016075), (10, 25612860), (12, 21344050), (13, 19702200), (14, 18294900), (15, 17075240), (20, 12806430), (21, 12196600), (24, 10672025), (25, 10245144), (26, 9851100), (28, 9147450), (30, 8537620), (35, 7317960), (39, 6567400), (40, 6403215), (42, 6098300), (50, 5122572), (52, 4925550), (56, 4573725), (60, 4268810), (65, 3940440), (70, 3658980), (75, 3415048), (78, 3283700), (84, 3049150), (91, 2814600), (100, 2561286), (104, 2462775), (105, 2439320), (120, 2134405), (130, 1970220), (140, 1829490), (150, 1707524), (156, 1641850), (168, 1524575), (175, 1463592), (182, 1407300), (195, 1313480), (200, 1280643), (210, 1219660), (260, 985110), (273, 938200), (280, 914745), (300, 853762), (312, 820925), (325, 788088), (350, 731796), (364, 703650), (390, 656740), (420, 609830), (455, 562920), (520, 492555), (525, 487864), (546, 469100), (600, 426881), (650, 394044), (700, 365898), (728, 351825), (780, 328370), (840, 304915), (910, 281460), (975, 262696), (1050, 243932), (1092, 234550), (1300, 197022), (1365, 187640), (1400, 182949), (1560, 164185), (1820, 140730), (1950, 131348), (2100, 121966), (2184, 117275), (2275, 112584), (2600, 98511), (2730, 93820), (3640, 70365), (3900, 65674), (4200, 60983), (4550, 56292), (4691, 54600), (5460, 46910), (6825, 37528), (7800, 32837), (9100, 28146), (9382, 27300), (10920, 23455), (13650, 18764), (14073, 18200)]