289774004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{78487}}^1$

素因数の和:78575

約数の個数: 24

約数和(自身を含む): 553811328

約数和(自身を除く): 264037324

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 78487, 156974, 313948, 1020331, 2040662, 4081324, 5572577, 11145154, 22290308, 72443501, 144887002, 289774004]

約数ペア:

[(1, 289774004), (2, 144887002), (4, 72443501), (13, 22290308), (26, 11145154), (52, 5572577), (71, 4081324), (142, 2040662), (284, 1020331), (923, 313948), (1846, 156974), (3692, 78487)]