16844440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{10271}}^1$

素因数の和:10323

約数の個数: 32

約数和(自身を含む): 38828160

約数和(自身を除く): 21983720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 10271, 20542, 41084, 51355, 82168, 102710, 205420, 410840, 421111, 842222, 1684444, 2105555, 3368888, 4211110, 8422220, 16844440]

約数ペア:

[(1, 16844440), (2, 8422220), (4, 4211110), (5, 3368888), (8, 2105555), (10, 1684444), (20, 842222), (40, 421111), (41, 410840), (82, 205420), (164, 102710), (205, 82168), (328, 51355), (410, 41084), (820, 20542), (1640, 10271)]