81253310

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{2239}}^1$

素因数の和:2456

約数の個数: 32

約数和(自身を含む): 154828800

約数和(自身を除く): 73575490

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 191, 382, 955, 1910, 2239, 3629, 4478, 7258, 11195, 18145, 22390, 36290, 42541, 85082, 212705, 425410, 427649, 855298, 2138245, 4276490, 8125331, 16250662, 40626655, 81253310]

約数ペア:

[(1, 81253310), (2, 40626655), (5, 16250662), (10, 8125331), (19, 4276490), (38, 2138245), (95, 855298), (190, 427649), (191, 425410), (382, 212705), (955, 85082), (1910, 42541), (2239, 36290), (3629, 22390), (4478, 18145), (7258, 11195)]