78289169

素因数分解:

$7^1\times {\mathrm{47}}^2\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:245

約数の個数: 24

約数和(自身を含む): 94035648

約数和(自身を除く): 15746479

約数列:

[1, 7, 47, 61, 83, 329, 427, 581, 2209, 2867, 3901, 5063, 15463, 20069, 27307, 35441, 134749, 183347, 237961, 943243, 1283429, 1665727, 11184167, 78289169]

約数ペア:

[(1, 78289169), (7, 11184167), (47, 1665727), (61, 1283429), (83, 943243), (329, 237961), (427, 183347), (581, 134749), (2209, 35441), (2867, 27307), (3901, 20069), (5063, 15463)]