640933478

素因数分解:

$2^1\times {\mathrm{79}}^1\times {\mathrm{1439}}^1\times {\mathrm{2819}}^1$

素因数の和:4339

約数の個数: 16

約数和(自身を含む): 974592000

約数和(自身を除く): 333658522

約数列:

[1, 2, 79, 158, 1439, 2819, 2878, 5638, 113681, 222701, 227362, 445402, 4056541, 8113082, 320466739, 640933478]

約数ペア:

[(1, 640933478), (2, 320466739), (79, 8113082), (158, 4056541), (1439, 445402), (2819, 227362), (2878, 222701), (5638, 113681)]