820199312

素因数分解:

$2^4\times {\mathrm{647}}^1\times {\mathrm{79231}}^1$

素因数の和:79886

約数の個数: 20

約数和(自身を含む): 1591612416

約数和(自身を除く): 771413104

約数列:

[1, 2, 4, 8, 16, 647, 1294, 2588, 5176, 10352, 79231, 158462, 316924, 633848, 1267696, 51262457, 102524914, 205049828, 410099656, 820199312]

約数ペア:

[(1, 820199312), (2, 410099656), (4, 205049828), (8, 102524914), (16, 51262457), (647, 1267696), (1294, 633848), (2588, 316924), (5176, 158462), (10352, 79231)]