78831440

素因数分解:

$2^4\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7759}}^1$

素因数の和:7899

約数の個数: 40

約数和(自身を含む): 184750080

約数和(自身を除く): 105918640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 127, 254, 508, 635, 1016, 1270, 2032, 2540, 5080, 7759, 10160, 15518, 31036, 38795, 62072, 77590, 124144, 155180, 310360, 620720, 985393, 1970786, 3941572, 4926965, 7883144, 9853930, 15766288, 19707860, 39415720, 78831440]

約数ペア:

[(1, 78831440), (2, 39415720), (4, 19707860), (5, 15766288), (8, 9853930), (10, 7883144), (16, 4926965), (20, 3941572), (40, 1970786), (80, 985393), (127, 620720), (254, 310360), (508, 155180), (635, 124144), (1016, 77590), (1270, 62072), (2032, 38795), (2540, 31036), (5080, 15518), (7759, 10160)]