20797530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53327}}^1$

素因数の和:53350

約数の個数: 32

約数和(自身を含む): 53754624

約数和(自身を除く): 32957094

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53327, 106654, 159981, 266635, 319962, 533270, 693251, 799905, 1386502, 1599810, 2079753, 3466255, 4159506, 6932510, 10398765, 20797530]

約数ペア:

[(1, 20797530), (2, 10398765), (3, 6932510), (5, 4159506), (6, 3466255), (10, 2079753), (13, 1599810), (15, 1386502), (26, 799905), (30, 693251), (39, 533270), (65, 319962), (78, 266635), (130, 159981), (195, 106654), (390, 53327)]