189991808

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{47881}}^1$

素因数の和:47926

約数の個数: 32

約数和(自身を含む): 390717120

約数和(自身を除く): 200725312

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 47881, 95762, 191524, 383048, 766096, 1484311, 1532192, 2968622, 3064384, 5937244, 6128768, 11874488, 23748976, 47497952, 94995904, 189991808]

約数ペア:

[(1, 189991808), (2, 94995904), (4, 47497952), (8, 23748976), (16, 11874488), (31, 6128768), (32, 5937244), (62, 3064384), (64, 2968622), (124, 1532192), (128, 1484311), (248, 766096), (496, 383048), (992, 191524), (1984, 95762), (3968, 47881)]