61933640

素因数分解:

$2^3\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1553}}^1$

素因数の和:2561

約数の個数: 32

約数和(自身を含む): 139580280

約数和(自身を除く): 77646640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 997, 1553, 1994, 3106, 3988, 4985, 6212, 7765, 7976, 9970, 12424, 15530, 19940, 31060, 39880, 62120, 1548341, 3096682, 6193364, 7741705, 12386728, 15483410, 30966820, 61933640]

約数ペア:

[(1, 61933640), (2, 30966820), (4, 15483410), (5, 12386728), (8, 7741705), (10, 6193364), (20, 3096682), (40, 1548341), (997, 62120), (1553, 39880), (1994, 31060), (3106, 19940), (3988, 15530), (4985, 12424), (6212, 9970), (7765, 7976)]