64804580

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{23311}}^1$

素因数の和:23459

約数の個数: 24

約数和(自身を含む): 137074560

約数和(自身を除く): 72269980

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 23311, 46622, 93244, 116555, 233110, 466220, 3240229, 6480458, 12960916, 16201145, 32402290, 64804580]

約数ペア:

[(1, 64804580), (2, 32402290), (4, 16201145), (5, 12960916), (10, 6480458), (20, 3240229), (139, 466220), (278, 233110), (556, 116555), (695, 93244), (1390, 46622), (2780, 23311)]