80998380

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{49999}}^1$

素因数の和:50020

約数の個数: 60

約数和(自身を含む): 254100000

約数和(自身を除く): 173101620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 49999, 99998, 149997, 199996, 249995, 299994, 449991, 499990, 599988, 749985, 899982, 999980, 1349973, 1499970, 1799964, 2249955, 2699946, 2999940, 4049919, 4499910, 5399892, 6749865, 8099838, 8999820, 13499730, 16199676, 20249595, 26999460, 40499190, 80998380]

約数ペア:

[(1, 80998380), (2, 40499190), (3, 26999460), (4, 20249595), (5, 16199676), (6, 13499730), (9, 8999820), (10, 8099838), (12, 6749865), (15, 5399892), (18, 4499910), (20, 4049919), (27, 2999940), (30, 2699946), (36, 2249955), (45, 1799964), (54, 1499970), (60, 1349973), (81, 999980), (90, 899982), (108, 749985), (135, 599988), (162, 499990), (180, 449991), (270, 299994), (324, 249995), (405, 199996), (540, 149997), (810, 99998), (1620, 49999)]