128428380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{713491}}^1$

素因数の和:713506

約数の個数: 36

約数和(自身を含む): 389566632

約数和(自身を除く): 261138252

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 713491, 1426982, 2140473, 2853964, 3567455, 4280946, 6421419, 7134910, 8561892, 10702365, 12842838, 14269820, 21404730, 25685676, 32107095, 42809460, 64214190, 128428380]

約数ペア:

[(1, 128428380), (2, 64214190), (3, 42809460), (4, 32107095), (5, 25685676), (6, 21404730), (9, 14269820), (10, 12842838), (12, 10702365), (15, 8561892), (18, 7134910), (20, 6421419), (30, 4280946), (36, 3567455), (45, 2853964), (60, 2140473), (90, 1426982), (180, 713491)]