78811480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1$

素因数の和:209

約数の個数: 128

約数和(自身を含む): 204871680

約数和(自身を除く): 126060200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 37, 40, 44, 47, 55, 74, 88, 94, 103, 110, 148, 185, 188, 206, 220, 235, 296, 370, 376, 407, 412, 440, 470, 515, 517, 740, 814, 824, 940, 1030, 1034, 1133, 1480, 1628, 1739, 1880, 2035, 2060, 2068, 2266, 2585, 3256, 3478, 3811, 4070, 4120, 4136, 4532, 4841, 5170, 5665, 6956, 7622, 8140, 8695, 9064, 9682, 10340, 11330, 13912, 15244, 16280, 17390, 19055, 19129, 19364, 20680, 22660, 24205, 30488, 34780, 38110, 38258, 38728, 41921, 45320, 48410, 53251, 69560, 76220, 76516, 83842, 95645, 96820, 106502, 152440, 153032, 167684, 179117, 191290, 193640, 209605, 213004, 266255, 335368, 358234, 382580, 419210, 426008, 532510, 716468, 765160, 838420, 895585, 1065020, 1432936, 1676840, 1791170, 1970287, 2130040, 3582340, 3940574, 7164680, 7881148, 9851435, 15762296, 19702870, 39405740, 78811480]

約数ペア:

[(1, 78811480), (2, 39405740), (4, 19702870), (5, 15762296), (8, 9851435), (10, 7881148), (11, 7164680), (20, 3940574), (22, 3582340), (37, 2130040), (40, 1970287), (44, 1791170), (47, 1676840), (55, 1432936), (74, 1065020), (88, 895585), (94, 838420), (103, 765160), (110, 716468), (148, 532510), (185, 426008), (188, 419210), (206, 382580), (220, 358234), (235, 335368), (296, 266255), (370, 213004), (376, 209605), (407, 193640), (412, 191290), (440, 179117), (470, 167684), (515, 153032), (517, 152440), (740, 106502), (814, 96820), (824, 95645), (940, 83842), (1030, 76516), (1034, 76220), (1133, 69560), (1480, 53251), (1628, 48410), (1739, 45320), (1880, 41921), (2035, 38728), (2060, 38258), (2068, 38110), (2266, 34780), (2585, 30488), (3256, 24205), (3478, 22660), (3811, 20680), (4070, 19364), (4120, 19129), (4136, 19055), (4532, 17390), (4841, 16280), (5170, 15244), (5665, 13912), (6956, 11330), (7622, 10340), (8140, 9682), (8695, 9064)]