40289938

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{199}}^1\times {\mathrm{599}}^1$

素因数の和:826

約数の個数: 24

約数和(自身を含む): 65880000

約数和(自身を除く): 25590062

約数列:

[1, 2, 13, 26, 169, 199, 338, 398, 599, 1198, 2587, 5174, 7787, 15574, 33631, 67262, 101231, 119201, 202462, 238402, 1549613, 3099226, 20144969, 40289938]

約数ペア:

[(1, 40289938), (2, 20144969), (13, 3099226), (26, 1549613), (169, 238402), (199, 202462), (338, 119201), (398, 101231), (599, 67262), (1198, 33631), (2587, 15574), (5174, 7787)]