39719745

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1579}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 75915840

約数和(自身を除く): 36196095

約数列:

[1, 3, 5, 9, 13, 15, 39, 43, 45, 65, 117, 129, 195, 215, 387, 559, 585, 645, 1579, 1677, 1935, 2795, 4737, 5031, 7895, 8385, 14211, 20527, 23685, 25155, 61581, 67897, 71055, 102635, 184743, 203691, 307905, 339485, 611073, 882661, 923715, 1018455, 2647983, 3055365, 4413305, 7943949, 13239915, 39719745]

約数ペア:

[(1, 39719745), (3, 13239915), (5, 7943949), (9, 4413305), (13, 3055365), (15, 2647983), (39, 1018455), (43, 923715), (45, 882661), (65, 611073), (117, 339485), (129, 307905), (195, 203691), (215, 184743), (387, 102635), (559, 71055), (585, 67897), (645, 61581), (1579, 25155), (1677, 23685), (1935, 20527), (2795, 14211), (4737, 8385), (5031, 7895)]