689947628

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{887}}^1\times {\mathrm{1399}}^1$

素因数の和:2429

約数の個数: 24

約数和(自身を含む): 1218336000

約数和(自身を除く): 528388372

約数列:

[1, 2, 4, 139, 278, 556, 887, 1399, 1774, 2798, 3548, 5596, 123293, 194461, 246586, 388922, 493172, 777844, 1240913, 2481826, 4963652, 172486907, 344973814, 689947628]

約数ペア:

[(1, 689947628), (2, 344973814), (4, 172486907), (139, 4963652), (278, 2481826), (556, 1240913), (887, 777844), (1399, 493172), (1774, 388922), (2798, 246586), (3548, 194461), (5596, 123293)]