78780289

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{2287}}^1$

素因数の和:2357

約数の個数: 24

約数和(自身を含む): 99116160

約数和(自身を除く): 20335871

約数列:

[1, 7, 19, 37, 49, 133, 259, 703, 931, 1813, 2287, 4921, 16009, 34447, 43453, 84619, 112063, 304171, 592333, 1607761, 2129197, 4146331, 11254327, 78780289]

約数ペア:

[(1, 78780289), (7, 11254327), (19, 4146331), (37, 2129197), (49, 1607761), (133, 592333), (259, 304171), (703, 112063), (931, 84619), (1813, 43453), (2287, 34447), (4921, 16009)]