20782370

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:184

約数の個数: 64

約数和(自身を含む): 44755200

約数和(自身を除く): 23972830

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 73, 83, 98, 146, 166, 245, 343, 365, 415, 490, 511, 581, 686, 730, 830, 1022, 1162, 1715, 2555, 2905, 3430, 3577, 4067, 5110, 5810, 6059, 7154, 8134, 12118, 17885, 20335, 25039, 28469, 30295, 35770, 40670, 42413, 50078, 56938, 60590, 84826, 125195, 142345, 212065, 250390, 284690, 296891, 424130, 593782, 1484455, 2078237, 2968910, 4156474, 10391185, 20782370]

約数ペア:

[(1, 20782370), (2, 10391185), (5, 4156474), (7, 2968910), (10, 2078237), (14, 1484455), (35, 593782), (49, 424130), (70, 296891), (73, 284690), (83, 250390), (98, 212065), (146, 142345), (166, 125195), (245, 84826), (343, 60590), (365, 56938), (415, 50078), (490, 42413), (511, 40670), (581, 35770), (686, 30295), (730, 28469), (830, 25039), (1022, 20335), (1162, 17885), (1715, 12118), (2555, 8134), (2905, 7154), (3430, 6059), (3577, 5810), (4067, 5110)]