20159240

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{10723}}^1$

素因数の和:10781

約数の個数: 32

約数和(自身を含む): 46327680

約数和(自身を除く): 26168440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 10723, 21446, 42892, 53615, 85784, 107230, 214460, 428920, 503981, 1007962, 2015924, 2519905, 4031848, 5039810, 10079620, 20159240]

約数ペア:

[(1, 20159240), (2, 10079620), (4, 5039810), (5, 4031848), (8, 2519905), (10, 2015924), (20, 1007962), (40, 503981), (47, 428920), (94, 214460), (188, 107230), (235, 85784), (376, 53615), (470, 42892), (940, 21446), (1880, 10723)]