78885872

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{19961}}^1$

素因数の和:20001

約数の個数: 40

約数和(自身を含む): 173270160

約数和(自身を除く): 94384288

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 19961, 39922, 79844, 159688, 259493, 319376, 379259, 518986, 758518, 1037972, 1517036, 2075944, 3034072, 4151888, 4930367, 6068144, 9860734, 19721468, 39442936, 78885872]

約数ペア:

[(1, 78885872), (2, 39442936), (4, 19721468), (8, 9860734), (13, 6068144), (16, 4930367), (19, 4151888), (26, 3034072), (38, 2075944), (52, 1517036), (76, 1037972), (104, 758518), (152, 518986), (208, 379259), (247, 319376), (304, 259493), (494, 159688), (988, 79844), (1976, 39922), (3952, 19961)]