39986730

素因数分解:

$2^1\times 3^3\times 5^1\times 7^1\times {\mathrm{21157}}^1$

素因数の和:21180

約数の個数: 64

約数和(自身を含む): 121870080

約数和(自身を除く): 81883350

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 27, 30, 35, 42, 45, 54, 63, 70, 90, 105, 126, 135, 189, 210, 270, 315, 378, 630, 945, 1890, 21157, 42314, 63471, 105785, 126942, 148099, 190413, 211570, 296198, 317355, 380826, 444297, 571239, 634710, 740495, 888594, 952065, 1142478, 1332891, 1480990, 1904130, 2221485, 2665782, 2856195, 3998673, 4442970, 5712390, 6664455, 7997346, 13328910, 19993365, 39986730]

約数ペア:

[(1, 39986730), (2, 19993365), (3, 13328910), (5, 7997346), (6, 6664455), (7, 5712390), (9, 4442970), (10, 3998673), (14, 2856195), (15, 2665782), (18, 2221485), (21, 1904130), (27, 1480990), (30, 1332891), (35, 1142478), (42, 952065), (45, 888594), (54, 740495), (63, 634710), (70, 571239), (90, 444297), (105, 380826), (126, 317355), (135, 296198), (189, 211570), (210, 190413), (270, 148099), (315, 126942), (378, 105785), (630, 63471), (945, 42314), (1890, 21157)]