644955840

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{937}}^1$

素因数の和:1199

約数の個数: 168

約数和(自身を含む): 2230038720

約数和(自身を除く): 1585082880

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 239, 240, 288, 320, 360, 478, 480, 576, 717, 720, 937, 956, 960, 1195, 1434, 1440, 1874, 1912, 2151, 2390, 2811, 2868, 2880, 3585, 3748, 3824, 4302, 4685, 4780, 5622, 5736, 7170, 7496, 7648, 8433, 8604, 9370, 9560, 10755, 11244, 11472, 14055, 14340, 14992, 15296, 16866, 17208, 18740, 19120, 21510, 22488, 22944, 28110, 28680, 29984, 33732, 34416, 37480, 38240, 42165, 43020, 44976, 45888, 56220, 57360, 59968, 67464, 68832, 74960, 76480, 84330, 86040, 89952, 112440, 114720, 134928, 137664, 149920, 168660, 172080, 179904, 223943, 224880, 229440, 269856, 299840, 337320, 344160, 447886, 449760, 539712, 671829, 674640, 688320, 895772, 899520, 1119715, 1343658, 1349280, 1791544, 2015487, 2239430, 2687316, 2698560, 3359145, 3583088, 4030974, 4478860, 5374632, 6718290, 7166176, 8061948, 8957720, 10077435, 10749264, 13436580, 14332352, 16123896, 17915440, 20154870, 21498528, 26873160, 32247792, 35830880, 40309740, 42997056, 53746320, 64495584, 71661760, 80619480, 107492640, 128991168, 161238960, 214985280, 322477920, 644955840]

約数ペア:

[(1, 644955840), (2, 322477920), (3, 214985280), (4, 161238960), (5, 128991168), (6, 107492640), (8, 80619480), (9, 71661760), (10, 64495584), (12, 53746320), (15, 42997056), (16, 40309740), (18, 35830880), (20, 32247792), (24, 26873160), (30, 21498528), (32, 20154870), (36, 17915440), (40, 16123896), (45, 14332352), (48, 13436580), (60, 10749264), (64, 10077435), (72, 8957720), (80, 8061948), (90, 7166176), (96, 6718290), (120, 5374632), (144, 4478860), (160, 4030974), (180, 3583088), (192, 3359145), (239, 2698560), (240, 2687316), (288, 2239430), (320, 2015487), (360, 1791544), (478, 1349280), (480, 1343658), (576, 1119715), (717, 899520), (720, 895772), (937, 688320), (956, 674640), (960, 671829), (1195, 539712), (1434, 449760), (1440, 447886), (1874, 344160), (1912, 337320), (2151, 299840), (2390, 269856), (2811, 229440), (2868, 224880), (2880, 223943), (3585, 179904), (3748, 172080), (3824, 168660), (4302, 149920), (4685, 137664), (4780, 134928), (5622, 114720), (5736, 112440), (7170, 89952), (7496, 86040), (7648, 84330), (8433, 76480), (8604, 74960), (9370, 68832), (9560, 67464), (10755, 59968), (11244, 57360), (11472, 56220), (14055, 45888), (14340, 44976), (14992, 43020), (15296, 42165), (16866, 38240), (17208, 37480), (18740, 34416), (19120, 33732), (21510, 29984), (22488, 28680), (22944, 28110)]