161988498

素因数分解:

$2^1\times 3^4\times 7^1\times {\mathrm{211}}^1\times {\mathrm{677}}^1$

素因数の和:909

約数の個数: 80

約数和(自身を含む): 417409344

約数和(自身を除く): 255420846

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 81, 126, 162, 189, 211, 378, 422, 567, 633, 677, 1134, 1266, 1354, 1477, 1899, 2031, 2954, 3798, 4062, 4431, 4739, 5697, 6093, 8862, 9478, 11394, 12186, 13293, 14217, 17091, 18279, 26586, 28434, 34182, 36558, 39879, 42651, 54837, 79758, 85302, 109674, 119637, 127953, 142847, 239274, 255906, 285694, 383859, 428541, 767718, 857082, 999929, 1285623, 1999858, 2571246, 2999787, 3856869, 5999574, 7713738, 8999361, 11570607, 17998722, 23141214, 26998083, 53996166, 80994249, 161988498]

約数ペア:

[(1, 161988498), (2, 80994249), (3, 53996166), (6, 26998083), (7, 23141214), (9, 17998722), (14, 11570607), (18, 8999361), (21, 7713738), (27, 5999574), (42, 3856869), (54, 2999787), (63, 2571246), (81, 1999858), (126, 1285623), (162, 999929), (189, 857082), (211, 767718), (378, 428541), (422, 383859), (567, 285694), (633, 255906), (677, 239274), (1134, 142847), (1266, 127953), (1354, 119637), (1477, 109674), (1899, 85302), (2031, 79758), (2954, 54837), (3798, 42651), (4062, 39879), (4431, 36558), (4739, 34182), (5697, 28434), (6093, 26586), (8862, 18279), (9478, 17091), (11394, 14217), (12186, 13293)]