20164501780

素因数分解:

$2^2\times 5^1\times {\mathrm{3739}}^1\times {\mathrm{269651}}^1$

素因数の和:273399

約数の個数: 24

約数和(自身を含む): 42356936160

約数和(自身を除く): 22192434380

約数列:

[1, 2, 4, 5, 10, 20, 3739, 7478, 14956, 18695, 37390, 74780, 269651, 539302, 1078604, 1348255, 2696510, 5393020, 1008225089, 2016450178, 4032900356, 5041125445, 10082250890, 20164501780]

約数ペア:

[(1, 20164501780), (2, 10082250890), (4, 5041125445), (5, 4032900356), (10, 2016450178), (20, 1008225089), (3739, 5393020), (7478, 2696510), (14956, 1348255), (18695, 1078604), (37390, 539302), (74780, 269651)]