64943905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{131}}^1\times {\mathrm{263}}^1$

素因数の和:441

約数の個数: 32

約数和(自身を含む): 87816960

約数和(自身を除く): 22873055

約数列:

[1, 5, 13, 29, 65, 131, 145, 263, 377, 655, 1315, 1703, 1885, 3419, 3799, 7627, 8515, 17095, 18995, 34453, 38135, 49387, 99151, 172265, 246935, 447889, 495755, 999137, 2239445, 4995685, 12988781, 64943905]

約数ペア:

[(1, 64943905), (5, 12988781), (13, 4995685), (29, 2239445), (65, 999137), (131, 495755), (145, 447889), (263, 246935), (377, 172265), (655, 99151), (1315, 49387), (1703, 38135), (1885, 34453), (3419, 18995), (3799, 17095), (7627, 8515)]