20172279985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1659587}}^1$

素因数の和:1659633

約数の個数: 32

約数和(自身を含む): 30111564672

約数和(自身を除く): 9939284687

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 143, 187, 221, 715, 935, 1105, 2431, 12155, 1659587, 8297935, 18255457, 21574631, 28212979, 91277285, 107873155, 141064895, 237320941, 310342769, 366768727, 1186604705, 1551713845, 1833843635, 4034455997, 20172279985]

約数ペア:

[(1, 20172279985), (5, 4034455997), (11, 1833843635), (13, 1551713845), (17, 1186604705), (55, 366768727), (65, 310342769), (85, 237320941), (143, 141064895), (187, 107873155), (221, 91277285), (715, 28212979), (935, 21574631), (1105, 18255457), (2431, 8297935), (12155, 1659587)]