64753820

素因数分解:

$2^2\times 5^1\times {\mathrm{641}}^1\times {\mathrm{5051}}^1$

素因数の和:5701

約数の個数: 24

約数和(自身を含む): 136222128

約数和(自身を除く): 71468308

約数列:

[1, 2, 4, 5, 10, 20, 641, 1282, 2564, 3205, 5051, 6410, 10102, 12820, 20204, 25255, 50510, 101020, 3237691, 6475382, 12950764, 16188455, 32376910, 64753820]

約数ペア:

[(1, 64753820), (2, 32376910), (4, 16188455), (5, 12950764), (10, 6475382), (20, 3237691), (641, 101020), (1282, 50510), (2564, 25255), (3205, 20204), (5051, 12820), (6410, 10102)]