640087252

素因数分解:

$2^2\times 7^1\times {\mathrm{677}}^1\times {\mathrm{33767}}^1$

素因数の和:34455

約数の個数: 24

約数和(自身を含む): 1282103424

約数和(自身を除く): 642016172

約数列:

[1, 2, 4, 7, 14, 28, 677, 1354, 2708, 4739, 9478, 18956, 33767, 67534, 135068, 236369, 472738, 945476, 22860259, 45720518, 91441036, 160021813, 320043626, 640087252]

約数ペア:

[(1, 640087252), (2, 320043626), (4, 160021813), (7, 91441036), (14, 45720518), (28, 22860259), (677, 945476), (1354, 472738), (2708, 236369), (4739, 135068), (9478, 67534), (18956, 33767)]