664492276

素因数分解:

$2^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{389047}}^1$

素因数の和:389119

約数の個数: 24

約数和(自身を含む): 1350774656

約数和(自身を除く): 686282380

約数列:

[1, 2, 4, 7, 14, 28, 61, 122, 244, 427, 854, 1708, 389047, 778094, 1556188, 2723329, 5446658, 10893316, 23731867, 47463734, 94927468, 166123069, 332246138, 664492276]

約数ペア:

[(1, 664492276), (2, 332246138), (4, 166123069), (7, 94927468), (14, 47463734), (28, 23731867), (61, 10893316), (122, 5446658), (244, 2723329), (427, 1556188), (854, 778094), (1708, 389047)]