287807320

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{153089}}^1$

素因数の和:153147

約数の個数: 32

約数和(自身を含む): 661348800

約数和(自身を除く): 373541480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 153089, 306178, 612356, 765445, 1224712, 1530890, 3061780, 6123560, 7195183, 14390366, 28780732, 35975915, 57561464, 71951830, 143903660, 287807320]

約数ペア:

[(1, 287807320), (2, 143903660), (4, 71951830), (5, 57561464), (8, 35975915), (10, 28780732), (20, 14390366), (40, 7195183), (47, 6123560), (94, 3061780), (188, 1530890), (235, 1224712), (376, 765445), (470, 612356), (940, 306178), (1880, 153089)]