2778807564

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{283}}^1\times {\mathrm{20981}}^1$

素因数の和:21287

約数の個数: 72

約数和(自身を含む): 7591623312

約数和(自身を除く): 4812815748

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 283, 468, 566, 849, 1132, 1698, 2547, 3396, 3679, 5094, 7358, 10188, 11037, 14716, 20981, 22074, 33111, 41962, 44148, 62943, 66222, 83924, 125886, 132444, 188829, 251772, 272753, 377658, 545506, 755316, 818259, 1091012, 1636518, 2454777, 3273036, 4909554, 5937623, 9819108, 11875246, 17812869, 23750492, 35625738, 53438607, 71251476, 77189099, 106877214, 154378198, 213754428, 231567297, 308756396, 463134594, 694701891, 926269188, 1389403782, 2778807564]

約数ペア:

[(1, 2778807564), (2, 1389403782), (3, 926269188), (4, 694701891), (6, 463134594), (9, 308756396), (12, 231567297), (13, 213754428), (18, 154378198), (26, 106877214), (36, 77189099), (39, 71251476), (52, 53438607), (78, 35625738), (117, 23750492), (156, 17812869), (234, 11875246), (283, 9819108), (468, 5937623), (566, 4909554), (849, 3273036), (1132, 2454777), (1698, 1636518), (2547, 1091012), (3396, 818259), (3679, 755316), (5094, 545506), (7358, 377658), (10188, 272753), (11037, 251772), (14716, 188829), (20981, 132444), (22074, 125886), (33111, 83924), (41962, 66222), (44148, 62943)]