20540476

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{37}}^2$

素因数の和:131

約数の個数: 54

約数和(自身を含む): 41917344

約数和(自身を除く): 21376868

約数列:

[1, 2, 4, 11, 22, 31, 37, 44, 62, 74, 121, 124, 148, 242, 341, 407, 484, 682, 814, 1147, 1364, 1369, 1628, 2294, 2738, 3751, 4477, 4588, 5476, 7502, 8954, 12617, 15004, 15059, 17908, 25234, 30118, 42439, 50468, 60236, 84878, 138787, 165649, 169756, 277574, 331298, 466829, 555148, 662596, 933658, 1867316, 5135119, 10270238, 20540476]

約数ペア:

[(1, 20540476), (2, 10270238), (4, 5135119), (11, 1867316), (22, 933658), (31, 662596), (37, 555148), (44, 466829), (62, 331298), (74, 277574), (121, 169756), (124, 165649), (148, 138787), (242, 84878), (341, 60236), (407, 50468), (484, 42439), (682, 30118), (814, 25234), (1147, 17908), (1364, 15059), (1369, 15004), (1628, 12617), (2294, 8954), (2738, 7502), (3751, 5476), (4477, 4588)]