28506280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 76826880

約数和(自身を除く): 48320600

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 37, 40, 44, 55, 68, 74, 85, 88, 103, 110, 136, 148, 170, 185, 187, 206, 220, 296, 340, 370, 374, 407, 412, 440, 515, 629, 680, 740, 748, 814, 824, 935, 1030, 1133, 1258, 1480, 1496, 1628, 1751, 1870, 2035, 2060, 2266, 2516, 3145, 3256, 3502, 3740, 3811, 4070, 4120, 4532, 5032, 5665, 6290, 6919, 7004, 7480, 7622, 8140, 8755, 9064, 11330, 12580, 13838, 14008, 15244, 16280, 17510, 19055, 19261, 22660, 25160, 27676, 30488, 34595, 35020, 38110, 38522, 41921, 45320, 55352, 64787, 69190, 70040, 76220, 77044, 83842, 96305, 129574, 138380, 152440, 154088, 167684, 192610, 209605, 259148, 276760, 323935, 335368, 385220, 419210, 518296, 647870, 712657, 770440, 838420, 1295740, 1425314, 1676840, 2591480, 2850628, 3563285, 5701256, 7126570, 14253140, 28506280]

約数ペア:

[(1, 28506280), (2, 14253140), (4, 7126570), (5, 5701256), (8, 3563285), (10, 2850628), (11, 2591480), (17, 1676840), (20, 1425314), (22, 1295740), (34, 838420), (37, 770440), (40, 712657), (44, 647870), (55, 518296), (68, 419210), (74, 385220), (85, 335368), (88, 323935), (103, 276760), (110, 259148), (136, 209605), (148, 192610), (170, 167684), (185, 154088), (187, 152440), (206, 138380), (220, 129574), (296, 96305), (340, 83842), (370, 77044), (374, 76220), (407, 70040), (412, 69190), (440, 64787), (515, 55352), (629, 45320), (680, 41921), (740, 38522), (748, 38110), (814, 35020), (824, 34595), (935, 30488), (1030, 27676), (1133, 25160), (1258, 22660), (1480, 19261), (1496, 19055), (1628, 17510), (1751, 16280), (1870, 15244), (2035, 14008), (2060, 13838), (2266, 12580), (2516, 11330), (3145, 9064), (3256, 8755), (3502, 8140), (3740, 7622), (3811, 7480), (4070, 7004), (4120, 6919), (4532, 6290), (5032, 5665)]