15690862120

素因数分解:

$2^3\times 5^1\times {\mathrm{1987}}^1\times {\mathrm{197419}}^1$

素因数の和:199417

約数の個数: 32

約数和(自身を含む): 35322386400

約数和(自身を除く): 19631524280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1987, 3974, 7948, 9935, 15896, 19870, 39740, 79480, 197419, 394838, 789676, 987095, 1579352, 1974190, 3948380, 7896760, 392271553, 784543106, 1569086212, 1961357765, 3138172424, 3922715530, 7845431060, 15690862120]

約数ペア:

[(1, 15690862120), (2, 7845431060), (4, 3922715530), (5, 3138172424), (8, 1961357765), (10, 1569086212), (20, 784543106), (40, 392271553), (1987, 7896760), (3974, 3948380), (7948, 1974190), (9935, 1579352), (15896, 987095), (19870, 789676), (39740, 394838), (79480, 197419)]