8371280

素因数分解:

$2^4\times 5^1\times {\mathrm{269}}^1\times {\mathrm{389}}^1$

素因数の和:671

約数の個数: 40

約数和(自身を含む): 19585800

約数和(自身を除く): 11214520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 269, 389, 538, 778, 1076, 1345, 1556, 1945, 2152, 2690, 3112, 3890, 4304, 5380, 6224, 7780, 10760, 15560, 21520, 31120, 104641, 209282, 418564, 523205, 837128, 1046410, 1674256, 2092820, 4185640, 8371280]

約数ペア:

[(1, 8371280), (2, 4185640), (4, 2092820), (5, 1674256), (8, 1046410), (10, 837128), (16, 523205), (20, 418564), (40, 209282), (80, 104641), (269, 31120), (389, 21520), (538, 15560), (778, 10760), (1076, 7780), (1345, 6224), (1556, 5380), (1945, 4304), (2152, 3890), (2690, 3112)]