30688460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139493}}^1$

素因数の和:139513

約数の個数: 24

約数和(自身を含む): 70304976

約数和(自身を除く): 39616516

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 139493, 278986, 557972, 697465, 1394930, 1534423, 2789860, 3068846, 6137692, 7672115, 15344230, 30688460]

約数ペア:

[(1, 30688460), (2, 15344230), (4, 7672115), (5, 6137692), (10, 3068846), (11, 2789860), (20, 1534423), (22, 1394930), (44, 697465), (55, 557972), (110, 278986), (220, 139493)]