899920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1607}}^1$

素因数の和:1627

約数の個数: 40

約数和(自身を含む): 2392704

約数和(自身を除く): 1492784

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1607, 3214, 6428, 8035, 11249, 12856, 16070, 22498, 25712, 32140, 44996, 56245, 64280, 89992, 112490, 128560, 179984, 224980, 449960, 899920]

約数ペア:

[(1, 899920), (2, 449960), (4, 224980), (5, 179984), (7, 128560), (8, 112490), (10, 89992), (14, 64280), (16, 56245), (20, 44996), (28, 32140), (35, 25712), (40, 22498), (56, 16070), (70, 12856), (80, 11249), (112, 8035), (140, 6428), (280, 3214), (560, 1607)]