20541290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{103}}^1$

素因数の和:172

約数の個数: 96

約数和(自身を含む): 48657024

約数和(自身を除く): 28115734

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 37, 49, 55, 70, 74, 77, 98, 103, 110, 154, 185, 206, 245, 259, 370, 385, 407, 490, 515, 518, 539, 721, 770, 814, 1030, 1078, 1133, 1295, 1442, 1813, 2035, 2266, 2590, 2695, 2849, 3605, 3626, 3811, 4070, 5047, 5390, 5665, 5698, 7210, 7622, 7931, 9065, 10094, 11330, 14245, 15862, 18130, 19055, 19943, 25235, 26677, 28490, 38110, 39655, 39886, 41921, 50470, 53354, 55517, 79310, 83842, 99715, 111034, 133385, 186739, 199430, 209605, 266770, 277585, 293447, 373478, 419210, 555170, 586894, 933695, 1467235, 1867390, 2054129, 2934470, 4108258, 10270645, 20541290]

約数ペア:

[(1, 20541290), (2, 10270645), (5, 4108258), (7, 2934470), (10, 2054129), (11, 1867390), (14, 1467235), (22, 933695), (35, 586894), (37, 555170), (49, 419210), (55, 373478), (70, 293447), (74, 277585), (77, 266770), (98, 209605), (103, 199430), (110, 186739), (154, 133385), (185, 111034), (206, 99715), (245, 83842), (259, 79310), (370, 55517), (385, 53354), (407, 50470), (490, 41921), (515, 39886), (518, 39655), (539, 38110), (721, 28490), (770, 26677), (814, 25235), (1030, 19943), (1078, 19055), (1133, 18130), (1295, 15862), (1442, 14245), (1813, 11330), (2035, 10094), (2266, 9065), (2590, 7931), (2695, 7622), (2849, 7210), (3605, 5698), (3626, 5665), (3811, 5390), (4070, 5047)]