81550378

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{15451}}^1$

素因数の和:15502

約数の個数: 32

約数和(自身を含む): 155756160

約数和(自身を除く): 74205782

約数列:

[1, 2, 7, 13, 14, 26, 29, 58, 91, 182, 203, 377, 406, 754, 2639, 5278, 15451, 30902, 108157, 200863, 216314, 401726, 448079, 896158, 1406041, 2812082, 3136553, 5825027, 6273106, 11650054, 40775189, 81550378]

約数ペア:

[(1, 81550378), (2, 40775189), (7, 11650054), (13, 6273106), (14, 5825027), (26, 3136553), (29, 2812082), (58, 1406041), (91, 896158), (182, 448079), (203, 401726), (377, 216314), (406, 200863), (754, 108157), (2639, 30902), (5278, 15451)]