68947820

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{12721}}^1$

素因数の和:13001

約数の個数: 24

約数和(自身を含む): 145336128

約数和(自身を除く): 76388308

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 12721, 25442, 50884, 63605, 127210, 254420, 3447391, 6894782, 13789564, 17236955, 34473910, 68947820]

約数ペア:

[(1, 68947820), (2, 34473910), (4, 17236955), (5, 13789564), (10, 6894782), (20, 3447391), (271, 254420), (542, 127210), (1084, 63605), (1355, 50884), (2710, 25442), (5420, 12721)]