664971328

素因数分解:

$2^6\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47881}}^1$

素因数の和:47931

約数の個数: 56

約数和(自身を含む): 1556739584

約数和(自身を除く): 891768256

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 217, 224, 248, 434, 448, 496, 868, 992, 1736, 1984, 3472, 6944, 13888, 47881, 95762, 191524, 335167, 383048, 670334, 766096, 1340668, 1484311, 1532192, 2681336, 2968622, 3064384, 5362672, 5937244, 10390177, 10725344, 11874488, 20780354, 21450688, 23748976, 41560708, 47497952, 83121416, 94995904, 166242832, 332485664, 664971328]

約数ペア:

[(1, 664971328), (2, 332485664), (4, 166242832), (7, 94995904), (8, 83121416), (14, 47497952), (16, 41560708), (28, 23748976), (31, 21450688), (32, 20780354), (56, 11874488), (62, 10725344), (64, 10390177), (112, 5937244), (124, 5362672), (217, 3064384), (224, 2968622), (248, 2681336), (434, 1532192), (448, 1484311), (496, 1340668), (868, 766096), (992, 670334), (1736, 383048), (1984, 335167), (3472, 191524), (6944, 95762), (13888, 47881)]