30654820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{218963}}^1$

素因数の和:218979

約数の個数: 24

約数和(自身を含む): 73571904

約数和(自身を除く): 42917084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 218963, 437926, 875852, 1094815, 1532741, 2189630, 3065482, 4379260, 6130964, 7663705, 15327410, 30654820]

約数ペア:

[(1, 30654820), (2, 15327410), (4, 7663705), (5, 6130964), (7, 4379260), (10, 3065482), (14, 2189630), (20, 1532741), (28, 1094815), (35, 875852), (70, 437926), (140, 218963)]