80720856

素因数分解:

$2^3\times 3^2\times {\mathrm{421}}^1\times {\mathrm{2663}}^1$

素因数の和:3096

約数の個数: 48

約数和(自身を含む): 219220560

約数和(自身を除く): 138499704

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 421, 842, 1263, 1684, 2526, 2663, 3368, 3789, 5052, 5326, 7578, 7989, 10104, 10652, 15156, 15978, 21304, 23967, 30312, 31956, 47934, 63912, 95868, 191736, 1121123, 2242246, 3363369, 4484492, 6726738, 8968984, 10090107, 13453476, 20180214, 26906952, 40360428, 80720856]

約数ペア:

[(1, 80720856), (2, 40360428), (3, 26906952), (4, 20180214), (6, 13453476), (8, 10090107), (9, 8968984), (12, 6726738), (18, 4484492), (24, 3363369), (36, 2242246), (72, 1121123), (421, 191736), (842, 95868), (1263, 63912), (1684, 47934), (2526, 31956), (2663, 30312), (3368, 23967), (3789, 21304), (5052, 15978), (5326, 15156), (7578, 10652), (7989, 10104)]