256361040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{449}}^1$

素因数の和:542

約数の個数: 240

約数和(自身を含む): 944470800

約数和(自身を除く): 688109760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 61, 65, 72, 78, 80, 90, 104, 117, 120, 122, 130, 144, 156, 180, 183, 195, 208, 234, 240, 244, 260, 305, 312, 360, 366, 390, 449, 468, 488, 520, 549, 585, 610, 624, 720, 732, 780, 793, 898, 915, 936, 976, 1040, 1098, 1170, 1220, 1347, 1464, 1560, 1586, 1796, 1830, 1872, 2196, 2245, 2340, 2379, 2440, 2694, 2745, 2928, 3120, 3172, 3592, 3660, 3965, 4041, 4392, 4490, 4680, 4758, 4880, 5388, 5490, 5837, 6344, 6735, 7137, 7184, 7320, 7930, 8082, 8784, 8980, 9360, 9516, 10776, 10980, 11674, 11895, 12688, 13470, 14274, 14640, 15860, 16164, 17511, 17960, 19032, 20205, 21552, 21960, 23348, 23790, 26940, 27389, 28548, 29185, 31720, 32328, 35022, 35685, 35920, 38064, 40410, 43920, 46696, 47580, 52533, 53880, 54778, 57096, 58370, 63440, 64656, 70044, 71370, 80820, 82167, 87555, 93392, 95160, 105066, 107760, 109556, 114192, 116740, 136945, 140088, 142740, 161640, 164334, 175110, 190320, 210132, 219112, 233480, 246501, 262665, 273890, 280176, 285480, 323280, 328668, 350220, 356057, 410835, 420264, 438224, 466960, 493002, 525330, 547780, 570960, 657336, 700440, 712114, 821670, 840528, 986004, 1050660, 1068171, 1095560, 1232505, 1314672, 1400880, 1424228, 1643340, 1780285, 1972008, 2101320, 2136342, 2191120, 2465010, 2848456, 3204513, 3286680, 3560570, 3944016, 4202640, 4272684, 4930020, 5340855, 5696912, 6409026, 6573360, 7121140, 8545368, 9860040, 10681710, 12818052, 14242280, 16022565, 17090736, 19720080, 21363420, 25636104, 28484560, 32045130, 42726840, 51272208, 64090260, 85453680, 128180520, 256361040]

約数ペア:

[(1, 256361040), (2, 128180520), (3, 85453680), (4, 64090260), (5, 51272208), (6, 42726840), (8, 32045130), (9, 28484560), (10, 25636104), (12, 21363420), (13, 19720080), (15, 17090736), (16, 16022565), (18, 14242280), (20, 12818052), (24, 10681710), (26, 9860040), (30, 8545368), (36, 7121140), (39, 6573360), (40, 6409026), (45, 5696912), (48, 5340855), (52, 4930020), (60, 4272684), (61, 4202640), (65, 3944016), (72, 3560570), (78, 3286680), (80, 3204513), (90, 2848456), (104, 2465010), (117, 2191120), (120, 2136342), (122, 2101320), (130, 1972008), (144, 1780285), (156, 1643340), (180, 1424228), (183, 1400880), (195, 1314672), (208, 1232505), (234, 1095560), (240, 1068171), (244, 1050660), (260, 986004), (305, 840528), (312, 821670), (360, 712114), (366, 700440), (390, 657336), (449, 570960), (468, 547780), (488, 525330), (520, 493002), (549, 466960), (585, 438224), (610, 420264), (624, 410835), (720, 356057), (732, 350220), (780, 328668), (793, 323280), (898, 285480), (915, 280176), (936, 273890), (976, 262665), (1040, 246501), (1098, 233480), (1170, 219112), (1220, 210132), (1347, 190320), (1464, 175110), (1560, 164334), (1586, 161640), (1796, 142740), (1830, 140088), (1872, 136945), (2196, 116740), (2245, 114192), (2340, 109556), (2379, 107760), (2440, 105066), (2694, 95160), (2745, 93392), (2928, 87555), (3120, 82167), (3172, 80820), (3592, 71370), (3660, 70044), (3965, 64656), (4041, 63440), (4392, 58370), (4490, 57096), (4680, 54778), (4758, 53880), (4880, 52533), (5388, 47580), (5490, 46696), (5837, 43920), (6344, 40410), (6735, 38064), (7137, 35920), (7184, 35685), (7320, 35022), (7930, 32328), (8082, 31720), (8784, 29185), (8980, 28548), (9360, 27389), (9516, 26940), (10776, 23790), (10980, 23348), (11674, 21960), (11895, 21552), (12688, 20205), (13470, 19032), (14274, 17960), (14640, 17511), (15860, 16164)]