128172605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{163}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 185125824

約数和(自身を除く): 56953219

約数列:

[1, 5, 11, 17, 29, 55, 85, 145, 163, 187, 319, 493, 815, 841, 935, 1595, 1793, 2465, 2771, 4205, 4727, 5423, 8965, 9251, 13855, 14297, 23635, 27115, 30481, 46255, 51997, 71485, 80359, 137083, 152405, 157267, 259985, 401795, 685415, 786335, 883949, 1507913, 2330411, 4419745, 7539565, 11652055, 25634521, 128172605]

約数ペア:

[(1, 128172605), (5, 25634521), (11, 11652055), (17, 7539565), (29, 4419745), (55, 2330411), (85, 1507913), (145, 883949), (163, 786335), (187, 685415), (319, 401795), (493, 259985), (815, 157267), (841, 152405), (935, 137083), (1595, 80359), (1793, 71485), (2465, 51997), (2771, 46255), (4205, 30481), (4727, 27115), (5423, 23635), (8965, 14297), (9251, 13855)]