81933640

素因数分解:

$2^3\times 5^1\times {\mathrm{347}}^1\times {\mathrm{5903}}^1$

素因数の和:6261

約数の個数: 32

約数和(自身を含む): 184913280

約数和(自身を除く): 102979640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 347, 694, 1388, 1735, 2776, 3470, 5903, 6940, 11806, 13880, 23612, 29515, 47224, 59030, 118060, 236120, 2048341, 4096682, 8193364, 10241705, 16386728, 20483410, 40966820, 81933640]

約数ペア:

[(1, 81933640), (2, 40966820), (4, 20483410), (5, 16386728), (8, 10241705), (10, 8193364), (20, 4096682), (40, 2048341), (347, 236120), (694, 118060), (1388, 59030), (1735, 47224), (2776, 29515), (3470, 23612), (5903, 13880), (6940, 11806)]