398405280

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{1303}}^1$

素因数の和:1348

約数の個数: 288

約数和(自身を含む): 1573375104

約数和(自身を除く): 1174969824

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 16, 20, 21, 24, 26, 28, 30, 32, 35, 39, 40, 42, 48, 49, 52, 56, 60, 65, 70, 78, 80, 84, 91, 96, 98, 104, 105, 112, 120, 130, 140, 147, 156, 160, 168, 182, 195, 196, 208, 210, 224, 240, 245, 260, 273, 280, 294, 312, 336, 364, 390, 392, 416, 420, 455, 480, 490, 520, 546, 560, 588, 624, 637, 672, 728, 735, 780, 784, 840, 910, 980, 1040, 1092, 1120, 1176, 1248, 1274, 1303, 1365, 1456, 1470, 1560, 1568, 1680, 1820, 1911, 1960, 2080, 2184, 2352, 2548, 2606, 2730, 2912, 2940, 3120, 3185, 3360, 3640, 3822, 3909, 3920, 4368, 4704, 5096, 5212, 5460, 5880, 6240, 6370, 6515, 7280, 7644, 7818, 7840, 8736, 9121, 9555, 10192, 10424, 10920, 11760, 12740, 13030, 14560, 15288, 15636, 16939, 18242, 19110, 19545, 20384, 20848, 21840, 23520, 25480, 26060, 27363, 30576, 31272, 33878, 36484, 38220, 39090, 41696, 43680, 45605, 50817, 50960, 52120, 54726, 61152, 62544, 63847, 67756, 72968, 76440, 78180, 84695, 91210, 101634, 101920, 104240, 109452, 118573, 125088, 127694, 135512, 136815, 145936, 152880, 156360, 169390, 182420, 191541, 203268, 208480, 218904, 237146, 254085, 255388, 271024, 273630, 291872, 305760, 312720, 319235, 338780, 355719, 364840, 383082, 406536, 437808, 474292, 508170, 510776, 542048, 547260, 592865, 625440, 638470, 677560, 711438, 729680, 766164, 813072, 830011, 875616, 948584, 957705, 1016340, 1021552, 1094520, 1185730, 1276940, 1355120, 1422876, 1459360, 1532328, 1626144, 1660022, 1778595, 1897168, 1915410, 2032680, 2043104, 2189040, 2371460, 2490033, 2553880, 2710240, 2845752, 3064656, 3320044, 3557190, 3794336, 3830820, 4065360, 4150055, 4378080, 4742920, 4980066, 5107760, 5691504, 6129312, 6640088, 7114380, 7661640, 8130720, 8300110, 9485840, 9960132, 10215520, 11383008, 12450165, 13280176, 14228760, 15323280, 16600220, 18971680, 19920264, 24900330, 26560352, 28457520, 30646560, 33200440, 39840528, 49800660, 56915040, 66400880, 79681056, 99601320, 132801760, 199202640, 398405280]

約数ペア:

[(1, 398405280), (2, 199202640), (3, 132801760), (4, 99601320), (5, 79681056), (6, 66400880), (7, 56915040), (8, 49800660), (10, 39840528), (12, 33200440), (13, 30646560), (14, 28457520), (15, 26560352), (16, 24900330), (20, 19920264), (21, 18971680), (24, 16600220), (26, 15323280), (28, 14228760), (30, 13280176), (32, 12450165), (35, 11383008), (39, 10215520), (40, 9960132), (42, 9485840), (48, 8300110), (49, 8130720), (52, 7661640), (56, 7114380), (60, 6640088), (65, 6129312), (70, 5691504), (78, 5107760), (80, 4980066), (84, 4742920), (91, 4378080), (96, 4150055), (98, 4065360), (104, 3830820), (105, 3794336), (112, 3557190), (120, 3320044), (130, 3064656), (140, 2845752), (147, 2710240), (156, 2553880), (160, 2490033), (168, 2371460), (182, 2189040), (195, 2043104), (196, 2032680), (208, 1915410), (210, 1897168), (224, 1778595), (240, 1660022), (245, 1626144), (260, 1532328), (273, 1459360), (280, 1422876), (294, 1355120), (312, 1276940), (336, 1185730), (364, 1094520), (390, 1021552), (392, 1016340), (416, 957705), (420, 948584), (455, 875616), (480, 830011), (490, 813072), (520, 766164), (546, 729680), (560, 711438), (588, 677560), (624, 638470), (637, 625440), (672, 592865), (728, 547260), (735, 542048), (780, 510776), (784, 508170), (840, 474292), (910, 437808), (980, 406536), (1040, 383082), (1092, 364840), (1120, 355719), (1176, 338780), (1248, 319235), (1274, 312720), (1303, 305760), (1365, 291872), (1456, 273630), (1470, 271024), (1560, 255388), (1568, 254085), (1680, 237146), (1820, 218904), (1911, 208480), (1960, 203268), (2080, 191541), (2184, 182420), (2352, 169390), (2548, 156360), (2606, 152880), (2730, 145936), (2912, 136815), (2940, 135512), (3120, 127694), (3185, 125088), (3360, 118573), (3640, 109452), (3822, 104240), (3909, 101920), (3920, 101634), (4368, 91210), (4704, 84695), (5096, 78180), (5212, 76440), (5460, 72968), (5880, 67756), (6240, 63847), (6370, 62544), (6515, 61152), (7280, 54726), (7644, 52120), (7818, 50960), (7840, 50817), (8736, 45605), (9121, 43680), (9555, 41696), (10192, 39090), (10424, 38220), (10920, 36484), (11760, 33878), (12740, 31272), (13030, 30576), (14560, 27363), (15288, 26060), (15636, 25480), (16939, 23520), (18242, 21840), (19110, 20848), (19545, 20384)]