1319920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2357}}^1$

素因数の和:2377

約数の個数: 40

約数和(自身を含む): 3508704

約数和(自身を除く): 2188784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2357, 4714, 9428, 11785, 16499, 18856, 23570, 32998, 37712, 47140, 65996, 82495, 94280, 131992, 164990, 188560, 263984, 329980, 659960, 1319920]

約数ペア:

[(1, 1319920), (2, 659960), (4, 329980), (5, 263984), (7, 188560), (8, 164990), (10, 131992), (14, 94280), (16, 82495), (20, 65996), (28, 47140), (35, 37712), (40, 32998), (56, 23570), (70, 18856), (80, 16499), (112, 11785), (140, 9428), (280, 4714), (560, 2357)]