81280129

素因数分解:

$7^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1\times {\mathrm{587}}^1$

素因数の和:876

約数の個数: 16

約数和(自身を含む): 94381056

約数和(自身を除く): 13100927

約数列:

[1, 7, 131, 151, 587, 917, 1057, 4109, 19781, 76897, 88637, 138467, 538279, 620459, 11611447, 81280129]

約数ペア:

[(1, 81280129), (7, 11611447), (131, 620459), (151, 538279), (587, 138467), (917, 88637), (1057, 76897), (4109, 19781)]