838840

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:391

約数の個数: 32

約数和(自身を含む): 1921680

約数和(自身を除く): 1082840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 268, 313, 335, 536, 626, 670, 1252, 1340, 1565, 2504, 2680, 3130, 6260, 12520, 20971, 41942, 83884, 104855, 167768, 209710, 419420, 838840]

約数ペア:

[(1, 838840), (2, 419420), (4, 209710), (5, 167768), (8, 104855), (10, 83884), (20, 41942), (40, 20971), (67, 12520), (134, 6260), (268, 3130), (313, 2680), (335, 2504), (536, 1565), (626, 1340), (670, 1252)]