138462860

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{16927}}^1$

素因数の和:17345

約数の個数: 24

約数和(自身を含む): 291500160

約数和(自身を除く): 153037300

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 16927, 33854, 67708, 84635, 169270, 338540, 6923143, 13846286, 27692572, 34615715, 69231430, 138462860]

約数ペア:

[(1, 138462860), (2, 69231430), (4, 34615715), (5, 27692572), (10, 13846286), (20, 6923143), (409, 338540), (818, 169270), (1636, 84635), (2045, 67708), (4090, 33854), (8180, 16927)]