20471320

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10889}}^1$

素因数の和:10947

約数の個数: 32

約数和(自身を含む): 47044800

約数和(自身を除く): 26573480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10889, 21778, 43556, 54445, 87112, 108890, 217780, 435560, 511783, 1023566, 2047132, 2558915, 4094264, 5117830, 10235660, 20471320]

約数ペア:

[(1, 20471320), (2, 10235660), (4, 5117830), (5, 4094264), (8, 2558915), (10, 2047132), (20, 1023566), (40, 511783), (47, 435560), (94, 217780), (188, 108890), (235, 87112), (376, 54445), (470, 43556), (940, 21778), (1880, 10889)]