2078128

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1$

素因数の和:221

約数の個数: 40

約数和(自身を含む): 4423328

約数和(自身を除く): 2345200

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 97, 103, 104, 194, 206, 208, 388, 412, 776, 824, 1261, 1339, 1552, 1648, 2522, 2678, 5044, 5356, 9991, 10088, 10712, 19982, 20176, 21424, 39964, 79928, 129883, 159856, 259766, 519532, 1039064, 2078128]

約数ペア:

[(1, 2078128), (2, 1039064), (4, 519532), (8, 259766), (13, 159856), (16, 129883), (26, 79928), (52, 39964), (97, 21424), (103, 20176), (104, 19982), (194, 10712), (206, 10088), (208, 9991), (388, 5356), (412, 5044), (776, 2678), (824, 2522), (1261, 1648), (1339, 1552)]