64579879

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{911}}^1$

素因数の和:991

約数の個数: 32

約数和(自身を含む): 85800960

約数和(自身を除く): 21221081

約数列:

[1, 7, 13, 19, 41, 91, 133, 247, 287, 533, 779, 911, 1729, 3731, 5453, 6377, 10127, 11843, 17309, 37351, 70889, 82901, 121163, 225017, 261457, 485563, 709669, 1575119, 3398941, 4967683, 9225697, 64579879]

約数ペア:

[(1, 64579879), (7, 9225697), (13, 4967683), (19, 3398941), (41, 1575119), (91, 709669), (133, 485563), (247, 261457), (287, 225017), (533, 121163), (779, 82901), (911, 70889), (1729, 37351), (3731, 17309), (5453, 11843), (6377, 10127)]