419420

素因数分解:

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

素因数の和:389

約数の個数: 24

約数和(自身を含む): 896784

約数和(自身を除く): 477364

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 313, 335, 626, 670, 1252, 1340, 1565, 3130, 6260, 20971, 41942, 83884, 104855, 209710, 419420]

約数ペア:

[(1, 419420), (2, 209710), (4, 104855), (5, 83884), (10, 41942), (20, 20971), (67, 6260), (134, 3130), (268, 1565), (313, 1340), (335, 1252), (626, 670)]