208043020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{4787}}^1$

素因数の和:4890

約数の個数: 48

約数和(自身を含む): 456085728

約数和(自身を除く): 248042708

約数列:

[1, 2, 4, 5, 10, 20, 41, 53, 82, 106, 164, 205, 212, 265, 410, 530, 820, 1060, 2173, 4346, 4787, 8692, 9574, 10865, 19148, 21730, 23935, 43460, 47870, 95740, 196267, 253711, 392534, 507422, 785068, 981335, 1014844, 1268555, 1962670, 2537110, 3925340, 5074220, 10402151, 20804302, 41608604, 52010755, 104021510, 208043020]

約数ペア:

[(1, 208043020), (2, 104021510), (4, 52010755), (5, 41608604), (10, 20804302), (20, 10402151), (41, 5074220), (53, 3925340), (82, 2537110), (106, 1962670), (164, 1268555), (205, 1014844), (212, 981335), (265, 785068), (410, 507422), (530, 392534), (820, 253711), (1060, 196267), (2173, 95740), (4346, 47870), (4787, 43460), (8692, 23935), (9574, 21730), (10865, 19148)]