208781680

素因数分解:

$2^4\times 5^1\times {\mathrm{577}}^1\times {\mathrm{4523}}^1$

素因数の和:5113

約数の個数: 40

約数和(自身を含む): 486366192

約数和(自身を除く): 277584512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 577, 1154, 2308, 2885, 4523, 4616, 5770, 9046, 9232, 11540, 18092, 22615, 23080, 36184, 45230, 46160, 72368, 90460, 180920, 361840, 2609771, 5219542, 10439084, 13048855, 20878168, 26097710, 41756336, 52195420, 104390840, 208781680]

約数ペア:

[(1, 208781680), (2, 104390840), (4, 52195420), (5, 41756336), (8, 26097710), (10, 20878168), (16, 13048855), (20, 10439084), (40, 5219542), (80, 2609771), (577, 361840), (1154, 180920), (2308, 90460), (2885, 72368), (4523, 46160), (4616, 45230), (5770, 36184), (9046, 23080), (9232, 22615), (11540, 18092)]