1878561140

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{857}}^1\times {\mathrm{863}}^1$

素因数の和:1856

約数の個数: 48

約数和(自身を含む): 3985293312

約数和(自身を除く): 2106732172

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 857, 863, 1270, 1714, 1726, 2540, 3428, 3452, 4285, 4315, 8570, 8630, 17140, 17260, 108839, 109601, 217678, 219202, 435356, 438404, 544195, 548005, 739591, 1088390, 1096010, 1479182, 2176780, 2192020, 2958364, 3697955, 7395910, 14791820, 93928057, 187856114, 375712228, 469640285, 939280570, 1878561140]

約数ペア:

[(1, 1878561140), (2, 939280570), (4, 469640285), (5, 375712228), (10, 187856114), (20, 93928057), (127, 14791820), (254, 7395910), (508, 3697955), (635, 2958364), (857, 2192020), (863, 2176780), (1270, 1479182), (1714, 1096010), (1726, 1088390), (2540, 739591), (3428, 548005), (3452, 544195), (4285, 438404), (4315, 435356), (8570, 219202), (8630, 217678), (17140, 109601), (17260, 108839)]