39906020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25913}}^1$

素因数の和:25940

約数の個数: 48

約数和(自身を含む): 104485248

約数和(自身を除く): 64579228

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 25913, 51826, 103652, 129565, 181391, 259130, 285043, 362782, 518260, 570086, 725564, 906955, 1140172, 1425215, 1813910, 1995301, 2850430, 3627820, 3990602, 5700860, 7981204, 9976505, 19953010, 39906020]

約数ペア:

[(1, 39906020), (2, 19953010), (4, 9976505), (5, 7981204), (7, 5700860), (10, 3990602), (11, 3627820), (14, 2850430), (20, 1995301), (22, 1813910), (28, 1425215), (35, 1140172), (44, 906955), (55, 725564), (70, 570086), (77, 518260), (110, 362782), (140, 285043), (154, 259130), (220, 181391), (308, 129565), (385, 103652), (770, 51826), (1540, 25913)]