78766513

素因数分解:

$7^1\times {\mathrm{23}}^2\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:381

約数の個数: 24

約数和(自身を含む): 95558400

約数和(自身を除く): 16791887

約数列:

[1, 7, 23, 89, 161, 239, 529, 623, 1673, 2047, 3703, 5497, 14329, 21271, 38479, 47081, 126431, 148897, 329567, 489233, 885017, 3424631, 11252359, 78766513]

約数ペア:

[(1, 78766513), (7, 11252359), (23, 3424631), (89, 885017), (161, 489233), (239, 329567), (529, 148897), (623, 126431), (1673, 47081), (2047, 38479), (3703, 21271), (5497, 14329)]