81320655

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{4129}}^1$

素因数の和:4251

約数の個数: 32

約数和(自身を含む): 141543360

約数和(自身を除く): 60222705

約数列:

[1, 3, 5, 13, 15, 39, 65, 101, 195, 303, 505, 1313, 1515, 3939, 4129, 6565, 12387, 19695, 20645, 53677, 61935, 161031, 268385, 417029, 805155, 1251087, 2085145, 5421377, 6255435, 16264131, 27106885, 81320655]

約数ペア:

[(1, 81320655), (3, 27106885), (5, 16264131), (13, 6255435), (15, 5421377), (39, 2085145), (65, 1251087), (101, 805155), (195, 417029), (303, 268385), (505, 161031), (1313, 61935), (1515, 53677), (3939, 20645), (4129, 19695), (6565, 12387)]