208778780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{4273}}^1$

素因数の和:4638

約数の個数: 48

約数和(自身を含む): 502622400

約数和(自身を除く): 293843620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 349, 698, 1396, 1745, 2443, 3490, 4273, 4886, 6980, 8546, 9772, 12215, 17092, 21365, 24430, 29911, 42730, 48860, 59822, 85460, 119644, 149555, 299110, 598220, 1491277, 2982554, 5965108, 7456385, 10438939, 14912770, 20877878, 29825540, 41755756, 52194695, 104389390, 208778780]

約数ペア:

[(1, 208778780), (2, 104389390), (4, 52194695), (5, 41755756), (7, 29825540), (10, 20877878), (14, 14912770), (20, 10438939), (28, 7456385), (35, 5965108), (70, 2982554), (140, 1491277), (349, 598220), (698, 299110), (1396, 149555), (1745, 119644), (2443, 85460), (3490, 59822), (4273, 48860), (4886, 42730), (6980, 29911), (8546, 24430), (9772, 21365), (12215, 17092)]