17999660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{18367}}^1$

素因数の和:18390

約数の個数: 36

約数和(自身を含む): 43972992

約数和(自身を除く): 25973332

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 18367, 36734, 73468, 91835, 128569, 183670, 257138, 367340, 514276, 642845, 899983, 1285690, 1799966, 2571380, 3599932, 4499915, 8999830, 17999660]

約数ペア:

[(1, 17999660), (2, 8999830), (4, 4499915), (5, 3599932), (7, 2571380), (10, 1799966), (14, 1285690), (20, 899983), (28, 642845), (35, 514276), (49, 367340), (70, 257138), (98, 183670), (140, 128569), (196, 91835), (245, 73468), (490, 36734), (980, 18367)]