204585280

素因数分解:

$2^6\times 5^1\times {\mathrm{639329}}^1$

素因数の和:639346

約数の個数: 28

約数和(自身を含む): 487169460

約数和(自身を除く): 282584180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 639329, 1278658, 2557316, 3196645, 5114632, 6393290, 10229264, 12786580, 20458528, 25573160, 40917056, 51146320, 102292640, 204585280]

約数ペア:

[(1, 204585280), (2, 102292640), (4, 51146320), (5, 40917056), (8, 25573160), (10, 20458528), (16, 12786580), (20, 10229264), (32, 6393290), (40, 5114632), (64, 3196645), (80, 2557316), (160, 1278658), (320, 639329)]