89450840

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{2243}}^1$

素因数の和:3251

約数の個数: 32

約数和(自身を含む): 201556080

約数和(自身を除く): 112105240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1994, 2243, 3988, 4486, 4985, 7976, 8972, 9970, 11215, 17944, 19940, 22430, 39880, 44860, 89720, 2236271, 4472542, 8945084, 11181355, 17890168, 22362710, 44725420, 89450840]

約数ペア:

[(1, 89450840), (2, 44725420), (4, 22362710), (5, 17890168), (8, 11181355), (10, 8945084), (20, 4472542), (40, 2236271), (997, 89720), (1994, 44860), (2243, 39880), (3988, 22430), (4486, 19940), (4985, 17944), (7976, 11215), (8972, 9970)]