20784426656

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2993149}}^1$

素因数の和:2993197

約数の個数: 48

約数和(自身を含む): 48273523200

約数和(自身を除く): 27489096544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 3472, 6944, 2993149, 5986298, 11972596, 20952043, 23945192, 41904086, 47890384, 83808172, 92787619, 95780768, 167616344, 185575238, 335232688, 371150476, 649513333, 670465376, 742300952, 1299026666, 1484601904, 2598053332, 2969203808, 5196106664, 10392213328, 20784426656]

約数ペア:

[(1, 20784426656), (2, 10392213328), (4, 5196106664), (7, 2969203808), (8, 2598053332), (14, 1484601904), (16, 1299026666), (28, 742300952), (31, 670465376), (32, 649513333), (56, 371150476), (62, 335232688), (112, 185575238), (124, 167616344), (217, 95780768), (224, 92787619), (248, 83808172), (434, 47890384), (496, 41904086), (868, 23945192), (992, 20952043), (1736, 11972596), (3472, 5986298), (6944, 2993149)]