90857990

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{1753}}^1$

素因数の和:1904

約数の個数: 32

約数和(自身を含む): 168215616

約数和(自身を除く): 77357626

約数列:

[1, 2, 5, 10, 71, 73, 142, 146, 355, 365, 710, 730, 1753, 3506, 5183, 8765, 10366, 17530, 25915, 51830, 124463, 127969, 248926, 255938, 622315, 639845, 1244630, 1279690, 9085799, 18171598, 45428995, 90857990]

約数ペア:

[(1, 90857990), (2, 45428995), (5, 18171598), (10, 9085799), (71, 1279690), (73, 1244630), (142, 639845), (146, 622315), (355, 255938), (365, 248926), (710, 127969), (730, 124463), (1753, 51830), (3506, 25915), (5183, 17530), (8765, 10366)]