129308540

素因数分解:

$2^2\times 5^1\times {\mathrm{1439}}^1\times {\mathrm{4493}}^1$

素因数の和:5941

約数の個数: 24

約数和(自身を含む): 271797120

約数和(自身を除く): 142488580

約数列:

[1, 2, 4, 5, 10, 20, 1439, 2878, 4493, 5756, 7195, 8986, 14390, 17972, 22465, 28780, 44930, 89860, 6465427, 12930854, 25861708, 32327135, 64654270, 129308540]

約数ペア:

[(1, 129308540), (2, 64654270), (4, 32327135), (5, 25861708), (10, 12930854), (20, 6465427), (1439, 89860), (2878, 44930), (4493, 28780), (5756, 22465), (7195, 17972), (8986, 14390)]