18800390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{547}}^1$

素因数の和:1052

約数の個数: 32

約数和(自身を含む): 38824704

約数和(自身を除く): 20024314

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 491, 547, 982, 1094, 2455, 2735, 3437, 3829, 4910, 5470, 6874, 7658, 17185, 19145, 34370, 38290, 268577, 537154, 1342885, 1880039, 2685770, 3760078, 9400195, 18800390]

約数ペア:

[(1, 18800390), (2, 9400195), (5, 3760078), (7, 2685770), (10, 1880039), (14, 1342885), (35, 537154), (70, 268577), (491, 38290), (547, 34370), (982, 19145), (1094, 17185), (2455, 7658), (2735, 6874), (3437, 5470), (3829, 4910)]