2017665880

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{196271}}^1$

素因数の和:196539

約数の個数: 32

約数和(自身を含む): 4557435840

約数和(自身を除く): 2539769960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 196271, 392542, 785084, 981355, 1570168, 1962710, 3925420, 7850840, 50441647, 100883294, 201766588, 252208235, 403533176, 504416470, 1008832940, 2017665880]

約数ペア:

[(1, 2017665880), (2, 1008832940), (4, 504416470), (5, 403533176), (8, 252208235), (10, 201766588), (20, 100883294), (40, 50441647), (257, 7850840), (514, 3925420), (1028, 1962710), (1285, 1570168), (2056, 981355), (2570, 785084), (5140, 392542), (10280, 196271)]