19700730

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{31271}}^1$

素因数の和:31291

約数の個数: 48

約数和(自身を含む): 58541184

約数和(自身を除く): 38840454

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 31271, 62542, 93813, 156355, 187626, 218897, 281439, 312710, 437794, 469065, 562878, 656691, 938130, 1094485, 1313382, 1407195, 1970073, 2188970, 2814390, 3283455, 3940146, 6566910, 9850365, 19700730]

約数ペア:

[(1, 19700730), (2, 9850365), (3, 6566910), (5, 3940146), (6, 3283455), (7, 2814390), (9, 2188970), (10, 1970073), (14, 1407195), (15, 1313382), (18, 1094485), (21, 938130), (30, 656691), (35, 562878), (42, 469065), (45, 437794), (63, 312710), (70, 281439), (90, 218897), (105, 187626), (126, 156355), (210, 93813), (315, 62542), (630, 31271)]