2001680

素因数分解:

$2^4\times 5^1\times {\mathrm{131}}^1\times {\mathrm{191}}^1$

素因数の和:335

約数の個数: 40

約数和(自身を含む): 4713984

約数和(自身を除く): 2712304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 131, 191, 262, 382, 524, 655, 764, 955, 1048, 1310, 1528, 1910, 2096, 2620, 3056, 3820, 5240, 7640, 10480, 15280, 25021, 50042, 100084, 125105, 200168, 250210, 400336, 500420, 1000840, 2001680]

約数ペア:

[(1, 2001680), (2, 1000840), (4, 500420), (5, 400336), (8, 250210), (10, 200168), (16, 125105), (20, 100084), (40, 50042), (80, 25021), (131, 15280), (191, 10480), (262, 7640), (382, 5240), (524, 3820), (655, 3056), (764, 2620), (955, 2096), (1048, 1910), (1310, 1528)]