64804540

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1098

約数の個数: 48

約数和(自身を含む): 141087744

約数和(自身を除く): 76283204

約数列:

[1, 2, 4, 5, 10, 20, 47, 71, 94, 142, 188, 235, 284, 355, 470, 710, 940, 971, 1420, 1942, 3337, 3884, 4855, 6674, 9710, 13348, 16685, 19420, 33370, 45637, 66740, 68941, 91274, 137882, 182548, 228185, 275764, 344705, 456370, 689410, 912740, 1378820, 3240227, 6480454, 12960908, 16201135, 32402270, 64804540]

約数ペア:

[(1, 64804540), (2, 32402270), (4, 16201135), (5, 12960908), (10, 6480454), (20, 3240227), (47, 1378820), (71, 912740), (94, 689410), (142, 456370), (188, 344705), (235, 275764), (284, 228185), (355, 182548), (470, 137882), (710, 91274), (940, 68941), (971, 66740), (1420, 45637), (1942, 33370), (3337, 19420), (3884, 16685), (4855, 13348), (6674, 9710)]