78250991

素因数分解:

$7^4\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:173

約数の個数: 40

約数和(自身を含む): 103524960

約数和(自身を除く): 25273969

約数列:

[1, 7, 13, 23, 49, 91, 109, 161, 299, 343, 637, 763, 1127, 1417, 2093, 2401, 2507, 4459, 5341, 7889, 9919, 14651, 17549, 31213, 32591, 37387, 55223, 69433, 102557, 122843, 228137, 261709, 486031, 717899, 859901, 1596959, 3402217, 6019307, 11178713, 78250991]

約数ペア:

[(1, 78250991), (7, 11178713), (13, 6019307), (23, 3402217), (49, 1596959), (91, 859901), (109, 717899), (161, 486031), (299, 261709), (343, 228137), (637, 122843), (763, 102557), (1127, 69433), (1417, 55223), (2093, 37387), (2401, 32591), (2507, 31213), (4459, 17549), (5341, 14651), (7889, 9919)]