30199540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1979}}^1$

素因数の和:2104

約数の個数: 48

約数和(自身を含む): 73180800

約数和(自身を除く): 42981260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 436, 545, 763, 1090, 1526, 1979, 2180, 3052, 3815, 3958, 7630, 7916, 9895, 13853, 15260, 19790, 27706, 39580, 55412, 69265, 138530, 215711, 277060, 431422, 862844, 1078555, 1509977, 2157110, 3019954, 4314220, 6039908, 7549885, 15099770, 30199540]

約数ペア:

[(1, 30199540), (2, 15099770), (4, 7549885), (5, 6039908), (7, 4314220), (10, 3019954), (14, 2157110), (20, 1509977), (28, 1078555), (35, 862844), (70, 431422), (109, 277060), (140, 215711), (218, 138530), (436, 69265), (545, 55412), (763, 39580), (1090, 27706), (1526, 19790), (1979, 15260), (2180, 13853), (3052, 9895), (3815, 7916), (3958, 7630)]