80943340

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{66347}}^1$

素因数の和:66417

約数の個数: 24

約数和(自身を含む): 172770192

約数和(自身を除く): 91826852

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 66347, 132694, 265388, 331735, 663470, 1326940, 4047167, 8094334, 16188668, 20235835, 40471670, 80943340]

約数ペア:

[(1, 80943340), (2, 40471670), (4, 20235835), (5, 16188668), (10, 8094334), (20, 4047167), (61, 1326940), (122, 663470), (244, 331735), (305, 265388), (610, 132694), (1220, 66347)]