64155760

素因数分解:

$2^4\times 5^1\times {\mathrm{801947}}^1$

素因数の和:801960

約数の個数: 20

約数和(自身を含む): 149162328

約数和(自身を除く): 85006568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 801947, 1603894, 3207788, 4009735, 6415576, 8019470, 12831152, 16038940, 32077880, 64155760]

約数ペア:

[(1, 64155760), (2, 32077880), (4, 16038940), (5, 12831152), (8, 8019470), (10, 6415576), (16, 4009735), (20, 3207788), (40, 1603894), (80, 801947)]