2745628990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{21120223}}^1$

素因数の和:21120243

約数の個数: 16

約数和(自身を含む): 5322296448

約数和(自身を除く): 2576667458

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 21120223, 42240446, 105601115, 211202230, 274562899, 549125798, 1372814495, 2745628990]

約数ペア:

[(1, 2745628990), (2, 1372814495), (5, 549125798), (10, 274562899), (13, 211202230), (26, 105601115), (65, 42240446), (130, 21120223)]