142730420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1019503}}^1$

素因数の和:1019519

約数の個数: 24

約数和(自身を含む): 342553344

約数和(自身を除く): 199822924

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1019503, 2039006, 4078012, 5097515, 7136521, 10195030, 14273042, 20390060, 28546084, 35682605, 71365210, 142730420]

約数ペア:

[(1, 142730420), (2, 71365210), (4, 35682605), (5, 28546084), (7, 20390060), (10, 14273042), (14, 10195030), (20, 7136521), (28, 5097515), (35, 4078012), (70, 2039006), (140, 1019503)]