399950928

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{213649}}^1$

素因数の和:213676

約数の個数: 60

約数和(自身を含む): 1205413300

約数和(自身を除く): 805462372

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 39, 48, 52, 72, 78, 104, 117, 144, 156, 208, 234, 312, 468, 624, 936, 1872, 213649, 427298, 640947, 854596, 1281894, 1709192, 1922841, 2563788, 2777437, 3418384, 3845682, 5127576, 5554874, 7691364, 8332311, 10255152, 11109748, 15382728, 16664622, 22219496, 24996933, 30765456, 33329244, 44438992, 49993866, 66658488, 99987732, 133316976, 199975464, 399950928]

約数ペア:

[(1, 399950928), (2, 199975464), (3, 133316976), (4, 99987732), (6, 66658488), (8, 49993866), (9, 44438992), (12, 33329244), (13, 30765456), (16, 24996933), (18, 22219496), (24, 16664622), (26, 15382728), (36, 11109748), (39, 10255152), (48, 8332311), (52, 7691364), (72, 5554874), (78, 5127576), (104, 3845682), (117, 3418384), (144, 2777437), (156, 2563788), (208, 1922841), (234, 1709192), (312, 1281894), (468, 854596), (624, 640947), (936, 427298), (1872, 213649)]