20766708885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{31517}}^1$

素因数の和:31678

約数の個数: 64

約数和(自身を含む): 37276968960

約数和(自身を除く): 16510260075

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 109, 155, 195, 327, 403, 465, 545, 1209, 1417, 1635, 2015, 3379, 4251, 6045, 7085, 10137, 16895, 21255, 31517, 43927, 50685, 94551, 131781, 157585, 219635, 409721, 472755, 658905, 977027, 1229163, 2048605, 2931081, 3435353, 4885135, 6145815, 10306059, 12701351, 14655405, 17176765, 38104053, 44659589, 51530295, 63506755, 106495943, 133978767, 190520265, 223297945, 319487829, 532479715, 669893835, 1384447259, 1597439145, 4153341777, 6922236295, 20766708885]

約数ペア:

[(1, 20766708885), (3, 6922236295), (5, 4153341777), (13, 1597439145), (15, 1384447259), (31, 669893835), (39, 532479715), (65, 319487829), (93, 223297945), (109, 190520265), (155, 133978767), (195, 106495943), (327, 63506755), (403, 51530295), (465, 44659589), (545, 38104053), (1209, 17176765), (1417, 14655405), (1635, 12701351), (2015, 10306059), (3379, 6145815), (4251, 4885135), (6045, 3435353), (7085, 2931081), (10137, 2048605), (16895, 1229163), (21255, 977027), (31517, 658905), (43927, 472755), (50685, 409721), (94551, 219635), (131781, 157585)]