20280491205

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{577}}^1\times {\mathrm{180247}}^1$

素因数の和:180845

約数の個数: 32

約数和(自身を含む): 35005603584

約数和(自身を除く): 14725112379

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 577, 1731, 2885, 7501, 8655, 22503, 37505, 112515, 180247, 540741, 901235, 2343211, 2703705, 7029633, 11716055, 35148165, 104002519, 312007557, 520012595, 1352032747, 1560037785, 4056098241, 6760163735, 20280491205]

約数ペア:

[(1, 20280491205), (3, 6760163735), (5, 4056098241), (13, 1560037785), (15, 1352032747), (39, 520012595), (65, 312007557), (195, 104002519), (577, 35148165), (1731, 11716055), (2885, 7029633), (7501, 2703705), (8655, 2343211), (22503, 901235), (37505, 540741), (112515, 180247)]