131209949

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 153753600

約数和(自身を除く): 22543651

約数列:

[1, 13, 29, 31, 103, 109, 377, 403, 899, 1339, 1417, 2987, 3161, 3193, 3379, 11227, 11687, 38831, 41093, 41509, 43927, 92597, 97991, 145951, 325583, 348037, 1203761, 1273883, 4232579, 4524481, 10093073, 131209949]

約数ペア:

[(1, 131209949), (13, 10093073), (29, 4524481), (31, 4232579), (103, 1273883), (109, 1203761), (377, 348037), (403, 325583), (899, 145951), (1339, 97991), (1417, 92597), (2987, 43927), (3161, 41509), (3193, 41093), (3379, 38831), (11227, 11687)]