388541660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1494391}}^1$

素因数の和:1494413

約数の個数: 24

約数和(自身を含む): 878702496

約数和(自身を除く): 490160836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1494391, 2988782, 5977564, 7471955, 14943910, 19427083, 29887820, 38854166, 77708332, 97135415, 194270830, 388541660]

約数ペア:

[(1, 388541660), (2, 194270830), (4, 97135415), (5, 77708332), (10, 38854166), (13, 29887820), (20, 19427083), (26, 14943910), (52, 7471955), (65, 5977564), (130, 2988782), (260, 1494391)]