1285202620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4943087}}^1$

素因数の和:4943109

約数の個数: 24

約数和(自身を含む): 2906535744

約数和(自身を除く): 1621333124

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 4943087, 9886174, 19772348, 24715435, 49430870, 64260131, 98861740, 128520262, 257040524, 321300655, 642601310, 1285202620]

約数ペア:

[(1, 1285202620), (2, 642601310), (4, 321300655), (5, 257040524), (10, 128520262), (13, 98861740), (20, 64260131), (26, 49430870), (52, 24715435), (65, 19772348), (130, 9886174), (260, 4943087)]