91222220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{227}}^1\times {\mathrm{283}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 195810048

約数和(自身を除く): 104587828

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 227, 283, 284, 355, 454, 566, 710, 908, 1132, 1135, 1415, 1420, 2270, 2830, 4540, 5660, 16117, 20093, 32234, 40186, 64241, 64468, 80372, 80585, 100465, 128482, 161170, 200930, 256964, 321205, 322340, 401860, 642410, 1284820, 4561111, 9122222, 18244444, 22805555, 45611110, 91222220]

約数ペア:

[(1, 91222220), (2, 45611110), (4, 22805555), (5, 18244444), (10, 9122222), (20, 4561111), (71, 1284820), (142, 642410), (227, 401860), (283, 322340), (284, 321205), (355, 256964), (454, 200930), (566, 161170), (710, 128482), (908, 100465), (1132, 80585), (1135, 80372), (1415, 64468), (1420, 64241), (2270, 40186), (2830, 32234), (4540, 20093), (5660, 16117)]