15959800

素因数分解:

$2^3\times 5^2\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:616

約数の個数: 48

約数和(自身を含む): 37386000

約数和(自身を除く): 21426200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 199, 200, 398, 401, 796, 802, 995, 1592, 1604, 1990, 2005, 3208, 3980, 4010, 4975, 7960, 8020, 9950, 10025, 16040, 19900, 20050, 39800, 40100, 79799, 80200, 159598, 319196, 398995, 638392, 797990, 1595980, 1994975, 3191960, 3989950, 7979900, 15959800]

約数ペア:

[(1, 15959800), (2, 7979900), (4, 3989950), (5, 3191960), (8, 1994975), (10, 1595980), (20, 797990), (25, 638392), (40, 398995), (50, 319196), (100, 159598), (199, 80200), (200, 79799), (398, 40100), (401, 39800), (796, 20050), (802, 19900), (995, 16040), (1592, 10025), (1604, 9950), (1990, 8020), (2005, 7960), (3208, 4975), (3980, 4010)]