1999202320

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1086523}}^1$

素因数の和:1086559

約数の個数: 40

約数和(自身を含む): 4850243136

約数和(自身を除く): 2851040816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 46, 80, 92, 115, 184, 230, 368, 460, 920, 1840, 1086523, 2173046, 4346092, 5432615, 8692184, 10865230, 17384368, 21730460, 24990029, 43460920, 49980058, 86921840, 99960116, 124950145, 199920232, 249900290, 399840464, 499800580, 999601160, 1999202320]

約数ペア:

[(1, 1999202320), (2, 999601160), (4, 499800580), (5, 399840464), (8, 249900290), (10, 199920232), (16, 124950145), (20, 99960116), (23, 86921840), (40, 49980058), (46, 43460920), (80, 24990029), (92, 21730460), (115, 17384368), (184, 10865230), (230, 8692184), (368, 5432615), (460, 4346092), (920, 2173046), (1840, 1086523)]