278345288

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{140863}}^1$

素因数の和:140901

約数の個数: 32

約数和(自身を含む): 591628800

約数和(自身を除く): 313283512

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 247, 494, 988, 1976, 140863, 281726, 563452, 1126904, 1831219, 2676397, 3662438, 5352794, 7324876, 10705588, 14649752, 21411176, 34793161, 69586322, 139172644, 278345288]

約数ペア:

[(1, 278345288), (2, 139172644), (4, 69586322), (8, 34793161), (13, 21411176), (19, 14649752), (26, 10705588), (38, 7324876), (52, 5352794), (76, 3662438), (104, 2676397), (152, 1831219), (247, 1126904), (494, 563452), (988, 281726), (1976, 140863)]