20217106580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1294309}}^1$

素因数の和:1294400

約数の個数: 48

約数和(自身を含む): 46967921280

約数和(自身を除く): 26750814700

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 71, 110, 142, 220, 284, 355, 710, 781, 1420, 1562, 3124, 3905, 7810, 15620, 1294309, 2588618, 5177236, 6471545, 12943090, 14237399, 25886180, 28474798, 56949596, 71186995, 91895939, 142373990, 183791878, 284747980, 367583756, 459479695, 918959390, 1010855329, 1837918780, 2021710658, 4043421316, 5054276645, 10108553290, 20217106580]

約数ペア:

[(1, 20217106580), (2, 10108553290), (4, 5054276645), (5, 4043421316), (10, 2021710658), (11, 1837918780), (20, 1010855329), (22, 918959390), (44, 459479695), (55, 367583756), (71, 284747980), (110, 183791878), (142, 142373990), (220, 91895939), (284, 71186995), (355, 56949596), (710, 28474798), (781, 25886180), (1420, 14237399), (1562, 12943090), (3124, 6471545), (3905, 5177236), (7810, 2588618), (15620, 1294309)]