636698890

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{641}}^1\times {\mathrm{1399}}^1$

素因数の和:2118

約数の個数: 32

約数和(自身を含む): 1164844800

約数和(自身を除く): 528145910

約数列:

[1, 2, 5, 10, 71, 142, 355, 641, 710, 1282, 1399, 2798, 3205, 6410, 6995, 13990, 45511, 91022, 99329, 198658, 227555, 455110, 496645, 896759, 993290, 1793518, 4483795, 8967590, 63669889, 127339778, 318349445, 636698890]

約数ペア:

[(1, 636698890), (2, 318349445), (5, 127339778), (10, 63669889), (71, 8967590), (142, 4483795), (355, 1793518), (641, 993290), (710, 896759), (1282, 496645), (1399, 455110), (2798, 227555), (3205, 198658), (6410, 99329), (6995, 91022), (13990, 45511)]