308998520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{406577}}^1$

素因数の和:406607

約数の個数: 32

約数和(自身を含む): 731840400

約数和(自身を除く): 422841880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 406577, 813154, 1626308, 2032885, 3252616, 4065770, 7724963, 8131540, 15449926, 16263080, 30899852, 38624815, 61799704, 77249630, 154499260, 308998520]

約数ペア:

[(1, 308998520), (2, 154499260), (4, 77249630), (5, 61799704), (8, 38624815), (10, 30899852), (19, 16263080), (20, 15449926), (38, 8131540), (40, 7724963), (76, 4065770), (95, 3252616), (152, 2032885), (190, 1626308), (380, 813154), (760, 406577)]