18941290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{761}}^1$

素因数の和:918

約数の個数: 32

約数和(自身を含む): 36210240

約数和(自身を除く): 17268950

約数列:

[1, 2, 5, 10, 19, 38, 95, 131, 190, 262, 655, 761, 1310, 1522, 2489, 3805, 4978, 7610, 12445, 14459, 24890, 28918, 72295, 99691, 144590, 199382, 498455, 996910, 1894129, 3788258, 9470645, 18941290]

約数ペア:

[(1, 18941290), (2, 9470645), (5, 3788258), (10, 1894129), (19, 996910), (38, 498455), (95, 199382), (131, 144590), (190, 99691), (262, 72295), (655, 28918), (761, 24890), (1310, 14459), (1522, 12445), (2489, 7610), (3805, 4978)]