81919984

素因数分解:

$2^4\times {\mathrm{719}}^1\times {\mathrm{7121}}^1$

素因数の和:7848

約数の個数: 20

約数和(自身を含む): 158963040

約数和(自身を除く): 77043056

約数列:

[1, 2, 4, 8, 16, 719, 1438, 2876, 5752, 7121, 11504, 14242, 28484, 56968, 113936, 5119999, 10239998, 20479996, 40959992, 81919984]

約数ペア:

[(1, 81919984), (2, 40959992), (4, 20479996), (8, 10239998), (16, 5119999), (719, 113936), (1438, 56968), (2876, 28484), (5752, 14242), (7121, 11504)]