20154628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 39626496

約数和(自身を除く): 19471868

約数列:

[1, 2, 4, 13, 26, 52, 53, 71, 103, 106, 142, 206, 212, 284, 412, 689, 923, 1339, 1378, 1846, 2678, 2756, 3692, 3763, 5356, 5459, 7313, 7526, 10918, 14626, 15052, 21836, 29252, 48919, 70967, 95069, 97838, 141934, 190138, 195676, 283868, 380276, 387589, 775178, 1550356, 5038657, 10077314, 20154628]

約数ペア:

[(1, 20154628), (2, 10077314), (4, 5038657), (13, 1550356), (26, 775178), (52, 387589), (53, 380276), (71, 283868), (103, 195676), (106, 190138), (142, 141934), (206, 97838), (212, 95069), (284, 70967), (412, 48919), (689, 29252), (923, 21836), (1339, 15052), (1378, 14626), (1846, 10918), (2678, 7526), (2756, 7313), (3692, 5459), (3763, 5356)]