40689.0000000

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3821}}^1$

素因数の和:3895

約数の個数: 16

約数和(自身を含む): 4678128

約数和(自身を除く): 2118058

約数列:

[1, 2, 5, 10, 67, 134, 335, 670, 3821, 7642, 19105, 38210, 256007, 512014, 1280035, 2560070]

約数ペア:

[(1, 2560070), (2, 1280035), (5, 512014), (10, 256007), (67, 38210), (134, 19105), (335, 7642), (670, 3821)]