399060790

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{761}}^1\times {\mathrm{1279}}^1$

素因数の和:2088

約数の個数: 32

約数和(自身を含む): 737372160

約数和(自身を除く): 338311370

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 761, 1279, 1522, 2558, 3805, 6395, 7610, 12790, 31201, 52439, 62402, 104878, 156005, 262195, 312010, 524390, 973319, 1946638, 4866595, 9733190, 39906079, 79812158, 199530395, 399060790]

約数ペア:

[(1, 399060790), (2, 199530395), (5, 79812158), (10, 39906079), (41, 9733190), (82, 4866595), (205, 1946638), (410, 973319), (761, 524390), (1279, 312010), (1522, 262195), (2558, 156005), (3805, 104878), (6395, 62402), (7610, 52439), (12790, 31201)]