278313919

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{839}}^1$

素因数の和:967

約数の個数: 32

約数和(自身を含む): 338688000

約数和(自身を除く): 60374081

約数列:

[1, 13, 17, 19, 79, 221, 247, 323, 839, 1027, 1343, 1501, 4199, 10907, 14263, 15941, 17459, 19513, 25517, 66281, 185419, 207233, 270997, 331721, 861653, 1126777, 1259339, 3522961, 14648101, 16371407, 21408763, 278313919]

約数ペア:

[(1, 278313919), (13, 21408763), (17, 16371407), (19, 14648101), (79, 3522961), (221, 1259339), (247, 1126777), (323, 861653), (839, 331721), (1027, 270997), (1343, 207233), (1501, 185419), (4199, 66281), (10907, 25517), (14263, 19513), (15941, 17459)]