20556510

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{52709}}^1$

素因数の和:52732

約数の個数: 32

約数和(自身を含む): 53131680

約数和(自身を除く): 32575170

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 52709, 105418, 158127, 263545, 316254, 527090, 685217, 790635, 1370434, 1581270, 2055651, 3426085, 4111302, 6852170, 10278255, 20556510]

約数ペア:

[(1, 20556510), (2, 10278255), (3, 6852170), (5, 4111302), (6, 3426085), (10, 2055651), (13, 1581270), (15, 1370434), (26, 790635), (30, 685217), (39, 527090), (65, 316254), (78, 263545), (130, 158127), (195, 105418), (390, 52709)]