128702990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{990023}}^1$

素因数の和:990043

約数の個数: 16

約数和(自身を含む): 249486048

約数和(自身を除く): 120783058

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 990023, 1980046, 4950115, 9900230, 12870299, 25740598, 64351495, 128702990]

約数ペア:

[(1, 128702990), (2, 64351495), (5, 25740598), (10, 12870299), (13, 9900230), (26, 4950115), (65, 1980046), (130, 990023)]