819201638

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{647}}^1\times {\mathrm{4621}}^1$

素因数の和:5407

約数の個数: 16

約数和(自身を含む): 1239953184

約数和(自身を除く): 420751546

約数列:

[1, 2, 137, 274, 647, 1294, 4621, 9242, 88639, 177278, 633077, 1266154, 2989787, 5979574, 409600819, 819201638]

約数ペア:

[(1, 819201638), (2, 409600819), (137, 5979574), (274, 2989787), (647, 1266154), (1294, 633077), (4621, 177278), (9242, 88639)]