1327940

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{991}}^1$

素因数の和:1067

約数の個数: 24

約数和(自身を含む): 2833152

約数和(自身を除く): 1505212

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 991, 1340, 1982, 3964, 4955, 9910, 19820, 66397, 132794, 265588, 331985, 663970, 1327940]

約数ペア:

[(1, 1327940), (2, 663970), (4, 331985), (5, 265588), (10, 132794), (20, 66397), (67, 19820), (134, 9910), (268, 4955), (335, 3964), (670, 1982), (991, 1340)]