778889280

素因数分解:

$2^6\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{449}}^1$

素因数の和:621

約数の個数: 224

約数和(自身を含む): 2688336000

約数和(自身を除く): 1909446720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 64, 65, 78, 80, 96, 104, 120, 130, 139, 156, 160, 192, 195, 208, 240, 260, 278, 312, 320, 390, 416, 417, 449, 480, 520, 556, 624, 695, 780, 832, 834, 898, 960, 1040, 1112, 1248, 1347, 1390, 1560, 1668, 1796, 1807, 2080, 2085, 2224, 2245, 2496, 2694, 2780, 3120, 3336, 3592, 3614, 4160, 4170, 4448, 4490, 5388, 5421, 5560, 5837, 6240, 6672, 6735, 7184, 7228, 8340, 8896, 8980, 9035, 10776, 10842, 11120, 11674, 12480, 13344, 13470, 14368, 14456, 16680, 17511, 17960, 18070, 21552, 21684, 22240, 23348, 26688, 26940, 27105, 28736, 28912, 29185, 33360, 35022, 35920, 36140, 43104, 43368, 44480, 46696, 53880, 54210, 57824, 58370, 62411, 66720, 70044, 71840, 72280, 86208, 86736, 87555, 93392, 107760, 108420, 115648, 116740, 124822, 133440, 140088, 143680, 144560, 173472, 175110, 186784, 187233, 215520, 216840, 233480, 249644, 280176, 289120, 312055, 346944, 350220, 373568, 374466, 431040, 433680, 466960, 499288, 560352, 578240, 624110, 700440, 748932, 811343, 867360, 933920, 936165, 998576, 1120704, 1248220, 1400880, 1497864, 1622686, 1734720, 1867840, 1872330, 1997152, 2434029, 2496440, 2801760, 2995728, 3245372, 3744660, 3994304, 4056715, 4868058, 4992880, 5603520, 5991456, 6490744, 7489320, 8113430, 9736116, 9985760, 11982912, 12170145, 12981488, 14978640, 16226860, 19472232, 19971520, 24340290, 25962976, 29957280, 32453720, 38944464, 48680580, 51925952, 59914560, 64907440, 77888928, 97361160, 129814880, 155777856, 194722320, 259629760, 389444640, 778889280]

約数ペア:

[(1, 778889280), (2, 389444640), (3, 259629760), (4, 194722320), (5, 155777856), (6, 129814880), (8, 97361160), (10, 77888928), (12, 64907440), (13, 59914560), (15, 51925952), (16, 48680580), (20, 38944464), (24, 32453720), (26, 29957280), (30, 25962976), (32, 24340290), (39, 19971520), (40, 19472232), (48, 16226860), (52, 14978640), (60, 12981488), (64, 12170145), (65, 11982912), (78, 9985760), (80, 9736116), (96, 8113430), (104, 7489320), (120, 6490744), (130, 5991456), (139, 5603520), (156, 4992880), (160, 4868058), (192, 4056715), (195, 3994304), (208, 3744660), (240, 3245372), (260, 2995728), (278, 2801760), (312, 2496440), (320, 2434029), (390, 1997152), (416, 1872330), (417, 1867840), (449, 1734720), (480, 1622686), (520, 1497864), (556, 1400880), (624, 1248220), (695, 1120704), (780, 998576), (832, 936165), (834, 933920), (898, 867360), (960, 811343), (1040, 748932), (1112, 700440), (1248, 624110), (1347, 578240), (1390, 560352), (1560, 499288), (1668, 466960), (1796, 433680), (1807, 431040), (2080, 374466), (2085, 373568), (2224, 350220), (2245, 346944), (2496, 312055), (2694, 289120), (2780, 280176), (3120, 249644), (3336, 233480), (3592, 216840), (3614, 215520), (4160, 187233), (4170, 186784), (4448, 175110), (4490, 173472), (5388, 144560), (5421, 143680), (5560, 140088), (5837, 133440), (6240, 124822), (6672, 116740), (6735, 115648), (7184, 108420), (7228, 107760), (8340, 93392), (8896, 87555), (8980, 86736), (9035, 86208), (10776, 72280), (10842, 71840), (11120, 70044), (11674, 66720), (12480, 62411), (13344, 58370), (13470, 57824), (14368, 54210), (14456, 53880), (16680, 46696), (17511, 44480), (17960, 43368), (18070, 43104), (21552, 36140), (21684, 35920), (22240, 35022), (23348, 33360), (26688, 29185), (26940, 28912), (27105, 28736)]