647258975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1\times {\mathrm{293}}^1$

素因数の和:620

約数の個数: 48

約数和(自身を含む): 912129120

約数和(自身を除く): 264870145

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 277, 293, 319, 725, 1385, 1465, 1595, 3047, 3223, 6925, 7325, 7975, 8033, 8497, 15235, 16115, 40165, 42485, 76175, 80575, 81161, 88363, 93467, 200825, 212425, 405805, 441815, 467335, 892771, 2029025, 2209075, 2336675, 2353669, 4463855, 11768345, 22319275, 25890359, 58841725, 129451795, 647258975]

約数ペア:

[(1, 647258975), (5, 129451795), (11, 58841725), (25, 25890359), (29, 22319275), (55, 11768345), (145, 4463855), (275, 2353669), (277, 2336675), (293, 2209075), (319, 2029025), (725, 892771), (1385, 467335), (1465, 441815), (1595, 405805), (3047, 212425), (3223, 200825), (6925, 93467), (7325, 88363), (7975, 81161), (8033, 80575), (8497, 76175), (15235, 42485), (16115, 40165)]