28163538

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:381

約数の個数: 80

約数和(自身を含む): 69765696

約数和(自身を除く): 41602158

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 43, 54, 78, 81, 86, 117, 129, 162, 234, 258, 311, 351, 387, 559, 622, 702, 774, 933, 1053, 1118, 1161, 1677, 1866, 2106, 2322, 2799, 3354, 3483, 4043, 5031, 5598, 6966, 8086, 8397, 10062, 12129, 13373, 15093, 16794, 24258, 25191, 26746, 30186, 36387, 40119, 45279, 50382, 72774, 80238, 90558, 109161, 120357, 173849, 218322, 240714, 327483, 347698, 361071, 521547, 654966, 722142, 1043094, 1083213, 1564641, 2166426, 3129282, 4693923, 9387846, 14081769, 28163538]

約数ペア:

[(1, 28163538), (2, 14081769), (3, 9387846), (6, 4693923), (9, 3129282), (13, 2166426), (18, 1564641), (26, 1083213), (27, 1043094), (39, 722142), (43, 654966), (54, 521547), (78, 361071), (81, 347698), (86, 327483), (117, 240714), (129, 218322), (162, 173849), (234, 120357), (258, 109161), (311, 90558), (351, 80238), (387, 72774), (559, 50382), (622, 45279), (702, 40119), (774, 36387), (933, 30186), (1053, 26746), (1118, 25191), (1161, 24258), (1677, 16794), (1866, 15093), (2106, 13373), (2322, 12129), (2799, 10062), (3354, 8397), (3483, 8086), (4043, 6966), (5031, 5598)]