78008540

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{23929}}^1$

素因数の和:24101

約数の個数: 24

約数和(自身を含む): 164829840

約数和(自身を除く): 86821300

約数列:

[1, 2, 4, 5, 10, 20, 163, 326, 652, 815, 1630, 3260, 23929, 47858, 95716, 119645, 239290, 478580, 3900427, 7800854, 15601708, 19502135, 39004270, 78008540]

約数ペア:

[(1, 78008540), (2, 39004270), (4, 19502135), (5, 15601708), (10, 7800854), (20, 3900427), (163, 478580), (326, 239290), (652, 119645), (815, 95716), (1630, 47858), (3260, 23929)]