81765665

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 107702784

約数和(自身を除く): 25937119

約数列:

[1, 5, 17, 47, 85, 97, 211, 235, 485, 799, 1055, 1649, 3587, 3995, 4559, 8245, 9917, 17935, 20467, 22795, 49585, 77503, 102335, 168589, 347939, 387515, 842945, 961949, 1739695, 4809745, 16353133, 81765665]

約数ペア:

[(1, 81765665), (5, 16353133), (17, 4809745), (47, 1739695), (85, 961949), (97, 842945), (211, 387515), (235, 347939), (485, 168589), (799, 102335), (1055, 77503), (1649, 49585), (3587, 22795), (3995, 20467), (4559, 17935), (8245, 9917)]