18535880

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:534

約数の個数: 64

約数和(自身を含む): 46051200

約数和(自身を除く): 27515320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 103, 110, 206, 220, 409, 412, 440, 515, 818, 824, 1030, 1133, 1636, 2045, 2060, 2266, 3272, 4090, 4120, 4499, 4532, 5665, 8180, 8998, 9064, 11330, 16360, 17996, 22495, 22660, 35992, 42127, 44990, 45320, 84254, 89980, 168508, 179960, 210635, 337016, 421270, 463397, 842540, 926794, 1685080, 1853588, 2316985, 3707176, 4633970, 9267940, 18535880]

約数ペア:

[(1, 18535880), (2, 9267940), (4, 4633970), (5, 3707176), (8, 2316985), (10, 1853588), (11, 1685080), (20, 926794), (22, 842540), (40, 463397), (44, 421270), (55, 337016), (88, 210635), (103, 179960), (110, 168508), (206, 89980), (220, 84254), (409, 45320), (412, 44990), (440, 42127), (515, 35992), (818, 22660), (824, 22495), (1030, 17996), (1133, 16360), (1636, 11330), (2045, 9064), (2060, 8998), (2266, 8180), (3272, 5665), (4090, 4532), (4120, 4499)]