20199090900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{1565821}}^1$

素因数の和:1565881

約数の個数: 72

約数和(自身を含む): 59801873824

約数和(自身を除く): 39602782924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 43, 50, 60, 75, 86, 100, 129, 150, 172, 215, 258, 300, 430, 516, 645, 860, 1075, 1290, 2150, 2580, 3225, 4300, 6450, 12900, 1565821, 3131642, 4697463, 6263284, 7829105, 9394926, 15658210, 18789852, 23487315, 31316420, 39145525, 46974630, 67330303, 78291050, 93949260, 117436575, 134660606, 156582100, 201990909, 234873150, 269321212, 336651515, 403981818, 469746300, 673303030, 807963636, 1009954545, 1346606060, 1683257575, 2019909090, 3366515150, 4039818180, 5049772725, 6733030300, 10099545450, 20199090900]

約数ペア:

[(1, 20199090900), (2, 10099545450), (3, 6733030300), (4, 5049772725), (5, 4039818180), (6, 3366515150), (10, 2019909090), (12, 1683257575), (15, 1346606060), (20, 1009954545), (25, 807963636), (30, 673303030), (43, 469746300), (50, 403981818), (60, 336651515), (75, 269321212), (86, 234873150), (100, 201990909), (129, 156582100), (150, 134660606), (172, 117436575), (215, 93949260), (258, 78291050), (300, 67330303), (430, 46974630), (516, 39145525), (645, 31316420), (860, 23487315), (1075, 18789852), (1290, 15658210), (2150, 9394926), (2580, 7829105), (3225, 6263284), (4300, 4697463), (6450, 3131642), (12900, 1565821)]