80878775

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{4049}}^1$

素因数の和:4123

約数の個数: 24

約数和(自身を含む): 108475200

約数和(自身を除く): 27596425

約数列:

[1, 5, 17, 25, 47, 85, 235, 425, 799, 1175, 3995, 4049, 19975, 20245, 68833, 101225, 190303, 344165, 951515, 1720825, 3235151, 4757575, 16175755, 80878775]

約数ペア:

[(1, 80878775), (5, 16175755), (17, 4757575), (25, 3235151), (47, 1720825), (85, 951515), (235, 344165), (425, 190303), (799, 101225), (1175, 68833), (3995, 20245), (4049, 19975)]