261618176

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{311}}^1$

素因数の和:413

約数の個数: 80

約数和(自身を含む): 551536128

約数和(自身を除く): 289917952

約数列:

[1, 2, 4, 8, 16, 31, 32, 53, 62, 64, 106, 124, 128, 212, 248, 256, 311, 424, 496, 512, 622, 848, 992, 1244, 1643, 1696, 1984, 2488, 3286, 3392, 3968, 4976, 6572, 6784, 7936, 9641, 9952, 13144, 13568, 15872, 16483, 19282, 19904, 26288, 27136, 32966, 38564, 39808, 52576, 65932, 77128, 79616, 105152, 131864, 154256, 159232, 210304, 263728, 308512, 420608, 510973, 527456, 617024, 841216, 1021946, 1054912, 1234048, 2043892, 2109824, 2468096, 4087784, 4219648, 4936192, 8175568, 8439296, 16351136, 32702272, 65404544, 130809088, 261618176]

約数ペア:

[(1, 261618176), (2, 130809088), (4, 65404544), (8, 32702272), (16, 16351136), (31, 8439296), (32, 8175568), (53, 4936192), (62, 4219648), (64, 4087784), (106, 2468096), (124, 2109824), (128, 2043892), (212, 1234048), (248, 1054912), (256, 1021946), (311, 841216), (424, 617024), (496, 527456), (512, 510973), (622, 420608), (848, 308512), (992, 263728), (1244, 210304), (1643, 159232), (1696, 154256), (1984, 131864), (2488, 105152), (3286, 79616), (3392, 77128), (3968, 65932), (4976, 52576), (6572, 39808), (6784, 38564), (7936, 32966), (9641, 27136), (9952, 26288), (13144, 19904), (13568, 19282), (15872, 16483)]