71028380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{208907}}^1$

素因数の和:208933

約数の個数: 24

約数和(自身を含む): 157934448

約数和(自身を除く): 86906068

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 208907, 417814, 835628, 1044535, 2089070, 3551419, 4178140, 7102838, 14205676, 17757095, 35514190, 71028380]

約数ペア:

[(1, 71028380), (2, 35514190), (4, 17757095), (5, 14205676), (10, 7102838), (17, 4178140), (20, 3551419), (34, 2089070), (68, 1044535), (85, 835628), (170, 417814), (340, 208907)]