19920775

素因数分解:

$5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{1699}}^1$

素因数の和:1783

約数の個数: 24

約数和(自身を含む): 28668800

約数和(自身を除く): 8748025

約数列:

[1, 5, 7, 25, 35, 67, 175, 335, 469, 1675, 1699, 2345, 8495, 11725, 11893, 42475, 59465, 113833, 297325, 569165, 796831, 2845825, 3984155, 19920775]

約数ペア:

[(1, 19920775), (5, 3984155), (7, 2845825), (25, 796831), (35, 569165), (67, 297325), (175, 113833), (335, 59465), (469, 42475), (1675, 11893), (1699, 11725), (2345, 8495)]