12808540

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{3929}}^1$

素因数の和:4101

約数の個数: 24

約数和(自身を含む): 27069840

約数和(自身を除く): 14261300

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 3929, 7858, 15716, 19645, 39290, 78580, 640427, 1280854, 2561708, 3202135, 6404270, 12808540]

約数ペア:

[(1, 12808540), (2, 6404270), (4, 3202135), (5, 2561708), (10, 1280854), (20, 640427), (163, 78580), (326, 39290), (652, 19645), (815, 15716), (1630, 7858), (3260, 3929)]