81989784

素因数分解:

$2^3\times 3^2\times {\mathrm{277}}^1\times {\mathrm{4111}}^1$

素因数の和:4400

約数の個数: 48

約数和(自身を含む): 222911520

約数和(自身を除く): 140921736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 277, 554, 831, 1108, 1662, 2216, 2493, 3324, 4111, 4986, 6648, 8222, 9972, 12333, 16444, 19944, 24666, 32888, 36999, 49332, 73998, 98664, 147996, 295992, 1138747, 2277494, 3416241, 4554988, 6832482, 9109976, 10248723, 13664964, 20497446, 27329928, 40994892, 81989784]

約数ペア:

[(1, 81989784), (2, 40994892), (3, 27329928), (4, 20497446), (6, 13664964), (8, 10248723), (9, 9109976), (12, 6832482), (18, 4554988), (24, 3416241), (36, 2277494), (72, 1138747), (277, 295992), (554, 147996), (831, 98664), (1108, 73998), (1662, 49332), (2216, 36999), (2493, 32888), (3324, 24666), (4111, 19944), (4986, 16444), (6648, 12333), (8222, 9972)]