245915520

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{487}}^1$

素因数の和:772

約数の個数: 128

約数和(自身を含む): 788451840

約数和(自身を除く): 542536320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 263, 320, 384, 480, 487, 526, 640, 789, 960, 974, 1052, 1315, 1461, 1578, 1920, 1948, 2104, 2435, 2630, 2922, 3156, 3896, 3945, 4208, 4870, 5260, 5844, 6312, 7305, 7792, 7890, 8416, 9740, 10520, 11688, 12624, 14610, 15584, 15780, 16832, 19480, 21040, 23376, 25248, 29220, 31168, 31560, 33664, 38960, 42080, 46752, 50496, 58440, 62336, 63120, 77920, 84160, 93504, 100992, 116880, 126240, 128081, 155840, 168320, 187008, 233760, 252480, 256162, 311680, 384243, 467520, 504960, 512324, 640405, 768486, 935040, 1024648, 1280810, 1536972, 1921215, 2049296, 2561620, 3073944, 3842430, 4098592, 5123240, 6147888, 7684860, 8197184, 10246480, 12295776, 15369720, 16394368, 20492960, 24591552, 30739440, 40985920, 49183104, 61478880, 81971840, 122957760, 245915520]

約数ペア:

[(1, 245915520), (2, 122957760), (3, 81971840), (4, 61478880), (5, 49183104), (6, 40985920), (8, 30739440), (10, 24591552), (12, 20492960), (15, 16394368), (16, 15369720), (20, 12295776), (24, 10246480), (30, 8197184), (32, 7684860), (40, 6147888), (48, 5123240), (60, 4098592), (64, 3842430), (80, 3073944), (96, 2561620), (120, 2049296), (128, 1921215), (160, 1536972), (192, 1280810), (240, 1024648), (263, 935040), (320, 768486), (384, 640405), (480, 512324), (487, 504960), (526, 467520), (640, 384243), (789, 311680), (960, 256162), (974, 252480), (1052, 233760), (1315, 187008), (1461, 168320), (1578, 155840), (1920, 128081), (1948, 126240), (2104, 116880), (2435, 100992), (2630, 93504), (2922, 84160), (3156, 77920), (3896, 63120), (3945, 62336), (4208, 58440), (4870, 50496), (5260, 46752), (5844, 42080), (6312, 38960), (7305, 33664), (7792, 31560), (7890, 31168), (8416, 29220), (9740, 25248), (10520, 23376), (11688, 21040), (12624, 19480), (14610, 16832), (15584, 15780)]