2216985940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{655913}}^1$

素因数の和:655948

約数の個数: 36

約数和(自身を含む): 5041355004

約数和(自身を除く): 2824369064

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 655913, 1311826, 2623652, 3279565, 6559130, 8526869, 13118260, 17053738, 34107476, 42634345, 85268690, 110849297, 170537380, 221698594, 443397188, 554246485, 1108492970, 2216985940]

約数ペア:

[(1, 2216985940), (2, 1108492970), (4, 554246485), (5, 443397188), (10, 221698594), (13, 170537380), (20, 110849297), (26, 85268690), (52, 42634345), (65, 34107476), (130, 17053738), (169, 13118260), (260, 8526869), (338, 6559130), (676, 3279565), (845, 2623652), (1690, 1311826), (3380, 655913)]