1640874965

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{87211}}^1$

素因数の和:87340

約数の個数: 16

約数和(自身を含む): 2034481536

約数和(自身を除く): 393606571

約数列:

[1, 5, 53, 71, 265, 355, 3763, 18815, 87211, 436055, 4622183, 6191981, 23110915, 30959905, 328174993, 1640874965]

約数ペア:

[(1, 1640874965), (5, 328174993), (53, 30959905), (71, 23110915), (265, 6191981), (355, 4622183), (3763, 436055), (18815, 87211)]