1987245

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1$

素因数の和:146

約数の個数: 48

約数和(自身を含む): 3843840

約数和(自身を除く): 1856595

約数列:

[1, 3, 5, 9, 13, 15, 39, 43, 45, 65, 79, 117, 129, 195, 215, 237, 387, 395, 559, 585, 645, 711, 1027, 1185, 1677, 1935, 2795, 3081, 3397, 3555, 5031, 5135, 8385, 9243, 10191, 15405, 16985, 25155, 30573, 44161, 46215, 50955, 132483, 152865, 220805, 397449, 662415, 1987245]

約数ペア:

[(1, 1987245), (3, 662415), (5, 397449), (9, 220805), (13, 152865), (15, 132483), (39, 50955), (43, 46215), (45, 44161), (65, 30573), (79, 25155), (117, 16985), (129, 15405), (195, 10191), (215, 9243), (237, 8385), (387, 5135), (395, 5031), (559, 3555), (585, 3397), (645, 3081), (711, 2795), (1027, 1935), (1185, 1677)]