78381289

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{12539}}^1$

素因数の和:12612

約数の個数: 16

約数和(自身を含む): 96307200

約数和(自身を除く): 17925911

約数列:

[1, 7, 19, 47, 133, 329, 893, 6251, 12539, 87773, 238241, 589333, 1667687, 4125331, 11197327, 78381289]

約数ペア:

[(1, 78381289), (7, 11197327), (19, 4125331), (47, 1667687), (133, 589333), (329, 238241), (893, 87773), (6251, 12539)]