20805070

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{14549}}^1$

素因数の和:14580

約数の個数: 32

約数和(自身を含む): 43999200

約数和(自身を除く): 23194130

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430, 14549, 29098, 72745, 145490, 160039, 189137, 320078, 378274, 800195, 945685, 1600390, 1891370, 2080507, 4161014, 10402535, 20805070]

約数ペア:

[(1, 20805070), (2, 10402535), (5, 4161014), (10, 2080507), (11, 1891370), (13, 1600390), (22, 945685), (26, 800195), (55, 378274), (65, 320078), (110, 189137), (130, 160039), (143, 145490), (286, 72745), (715, 29098), (1430, 14549)]