20843560

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{11087}}^1$

素因数の和:11145

約数の個数: 32

約数和(自身を含む): 47900160

約数和(自身を除く): 27056600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 11087, 22174, 44348, 55435, 88696, 110870, 221740, 443480, 521089, 1042178, 2084356, 2605445, 4168712, 5210890, 10421780, 20843560]

約数ペア:

[(1, 20843560), (2, 10421780), (4, 5210890), (5, 4168712), (8, 2605445), (10, 2084356), (20, 1042178), (40, 521089), (47, 443480), (94, 221740), (188, 110870), (235, 88696), (376, 55435), (470, 44348), (940, 22174), (1880, 11087)]