28979920

素因数分解:

$2^4\times 5^1\times {\mathrm{151}}^1\times {\mathrm{2399}}^1$

素因数の和:2563

約数の個数: 40

約数和(自身を含む): 67852800

約数和(自身を除く): 38872880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 151, 302, 604, 755, 1208, 1510, 2399, 2416, 3020, 4798, 6040, 9596, 11995, 12080, 19192, 23990, 38384, 47980, 95960, 191920, 362249, 724498, 1448996, 1811245, 2897992, 3622490, 5795984, 7244980, 14489960, 28979920]

約数ペア:

[(1, 28979920), (2, 14489960), (4, 7244980), (5, 5795984), (8, 3622490), (10, 2897992), (16, 1811245), (20, 1448996), (40, 724498), (80, 362249), (151, 191920), (302, 95960), (604, 47980), (755, 38384), (1208, 23990), (1510, 19192), (2399, 12080), (2416, 11995), (3020, 9596), (4798, 6040)]