260469460

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{66109}}^1$

素因数の和:66315

約数の個数: 24

約数和(自身を含む): 549770760

約数和(自身を除く): 289301300

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 788, 985, 1970, 3940, 66109, 132218, 264436, 330545, 661090, 1322180, 13023473, 26046946, 52093892, 65117365, 130234730, 260469460]

約数ペア:

[(1, 260469460), (2, 130234730), (4, 65117365), (5, 52093892), (10, 26046946), (20, 13023473), (197, 1322180), (394, 661090), (788, 330545), (985, 264436), (1970, 132218), (3940, 66109)]