7278040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1$

素因数の和:185

約数の個数: 128

約数和(自身を含む): 21772800

約数和(自身を除く): 14494760

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 17, 20, 22, 28, 34, 35, 40, 44, 55, 56, 68, 70, 77, 85, 88, 110, 119, 136, 139, 140, 154, 170, 187, 220, 238, 278, 280, 308, 340, 374, 385, 440, 476, 556, 595, 616, 680, 695, 748, 770, 935, 952, 973, 1112, 1190, 1309, 1390, 1496, 1529, 1540, 1870, 1946, 2363, 2380, 2618, 2780, 3058, 3080, 3740, 3892, 4726, 4760, 4865, 5236, 5560, 6116, 6545, 7480, 7645, 7784, 9452, 9730, 10472, 10703, 11815, 12232, 13090, 15290, 16541, 18904, 19460, 21406, 23630, 25993, 26180, 30580, 33082, 38920, 42812, 47260, 51986, 52360, 53515, 61160, 66164, 82705, 85624, 94520, 103972, 107030, 129965, 132328, 165410, 181951, 207944, 214060, 259930, 330820, 363902, 428120, 519860, 661640, 727804, 909755, 1039720, 1455608, 1819510, 3639020, 7278040]

約数ペア:

[(1, 7278040), (2, 3639020), (4, 1819510), (5, 1455608), (7, 1039720), (8, 909755), (10, 727804), (11, 661640), (14, 519860), (17, 428120), (20, 363902), (22, 330820), (28, 259930), (34, 214060), (35, 207944), (40, 181951), (44, 165410), (55, 132328), (56, 129965), (68, 107030), (70, 103972), (77, 94520), (85, 85624), (88, 82705), (110, 66164), (119, 61160), (136, 53515), (139, 52360), (140, 51986), (154, 47260), (170, 42812), (187, 38920), (220, 33082), (238, 30580), (278, 26180), (280, 25993), (308, 23630), (340, 21406), (374, 19460), (385, 18904), (440, 16541), (476, 15290), (556, 13090), (595, 12232), (616, 11815), (680, 10703), (695, 10472), (748, 9730), (770, 9452), (935, 7784), (952, 7645), (973, 7480), (1112, 6545), (1190, 6116), (1309, 5560), (1390, 5236), (1496, 4865), (1529, 4760), (1540, 4726), (1870, 3892), (1946, 3740), (2363, 3080), (2380, 3058), (2618, 2780)]