2556944

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:687

約数の個数: 40

約数和(自身を含む): 5624640

約数和(自身を除く): 3067696

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 647, 988, 1294, 1976, 2588, 3952, 5176, 8411, 10352, 12293, 16822, 24586, 33644, 49172, 67288, 98344, 134576, 159809, 196688, 319618, 639236, 1278472, 2556944]

約数ペア:

[(1, 2556944), (2, 1278472), (4, 639236), (8, 319618), (13, 196688), (16, 159809), (19, 134576), (26, 98344), (38, 67288), (52, 49172), (76, 33644), (104, 24586), (152, 16822), (208, 12293), (247, 10352), (304, 8411), (494, 5176), (647, 3952), (988, 2588), (1294, 1976)]