17866220

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^2\times {\mathrm{199}}^1$

素因数の和:342

約数の個数: 36

約数和(自身を含む): 38278800

約数和(自身を除く): 20412580

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 199, 268, 335, 398, 670, 796, 995, 1340, 1990, 3980, 4489, 8978, 13333, 17956, 22445, 26666, 44890, 53332, 66665, 89780, 133330, 266660, 893311, 1786622, 3573244, 4466555, 8933110, 17866220]

約数ペア:

[(1, 17866220), (2, 8933110), (4, 4466555), (5, 3573244), (10, 1786622), (20, 893311), (67, 266660), (134, 133330), (199, 89780), (268, 66665), (335, 53332), (398, 44890), (670, 26666), (796, 22445), (995, 17956), (1340, 13333), (1990, 8978), (3980, 4489)]