80452520

素因数分解:

$2^3\times 5^1\times {\mathrm{269}}^1\times {\mathrm{7477}}^1$

素因数の和:7757

約数の個数: 32

約数和(自身を含む): 181715400

約数和(自身を除く): 101262880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 269, 538, 1076, 1345, 2152, 2690, 5380, 7477, 10760, 14954, 29908, 37385, 59816, 74770, 149540, 299080, 2011313, 4022626, 8045252, 10056565, 16090504, 20113130, 40226260, 80452520]

約数ペア:

[(1, 80452520), (2, 40226260), (4, 20113130), (5, 16090504), (8, 10056565), (10, 8045252), (20, 4022626), (40, 2011313), (269, 299080), (538, 149540), (1076, 74770), (1345, 59816), (2152, 37385), (2690, 29908), (5380, 14954), (7477, 10760)]