689505964

素因数分解:

$2^2\times 7^1\times {\mathrm{2143}}^1\times {\mathrm{11491}}^1$

素因数の和:13645

約数の個数: 24

約数和(自身を含む): 1379775488

約数和(自身を除く): 690269524

約数列:

[1, 2, 4, 7, 14, 28, 2143, 4286, 8572, 11491, 15001, 22982, 30002, 45964, 60004, 80437, 160874, 321748, 24625213, 49250426, 98500852, 172376491, 344752982, 689505964]

約数ペア:

[(1, 689505964), (2, 344752982), (4, 172376491), (7, 98500852), (14, 49250426), (28, 24625213), (2143, 321748), (4286, 160874), (8572, 80437), (11491, 60004), (15001, 45964), (22982, 30002)]