19962020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{76777}}^1$

素因数の和:76799

約数の個数: 24

約数和(自身を含む): 45145464

約数和(自身を除く): 25183444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 76777, 153554, 307108, 383885, 767770, 998101, 1535540, 1996202, 3992404, 4990505, 9981010, 19962020]

約数ペア:

[(1, 19962020), (2, 9981010), (4, 4990505), (5, 3992404), (10, 1996202), (13, 1535540), (20, 998101), (26, 767770), (52, 383885), (65, 307108), (130, 153554), (260, 76777)]