640446

素因数分解:

$2^1\times 3^1\times {\mathrm{173}}^1\times {\mathrm{617}}^1$

素因数の和:795

約数の個数: 16

約数和(自身を含む): 1290384

約数和(自身を除く): 649938

約数列:

[1, 2, 3, 6, 173, 346, 519, 617, 1038, 1234, 1851, 3702, 106741, 213482, 320223, 640446]

約数ペア:

[(1, 640446), (2, 320223), (3, 213482), (6, 106741), (173, 3702), (346, 1851), (519, 1234), (617, 1038)]