16122680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{811}}^1$

素因数の和:900

約数の個数: 64

約数和(自身を含む): 42094080

約数和(自身を除く): 25971400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 140, 142, 280, 284, 355, 497, 568, 710, 811, 994, 1420, 1622, 1988, 2485, 2840, 3244, 3976, 4055, 4970, 5677, 6488, 8110, 9940, 11354, 16220, 19880, 22708, 28385, 32440, 45416, 56770, 57581, 113540, 115162, 227080, 230324, 287905, 403067, 460648, 575810, 806134, 1151620, 1612268, 2015335, 2303240, 3224536, 4030670, 8061340, 16122680]

約数ペア:

[(1, 16122680), (2, 8061340), (4, 4030670), (5, 3224536), (7, 2303240), (8, 2015335), (10, 1612268), (14, 1151620), (20, 806134), (28, 575810), (35, 460648), (40, 403067), (56, 287905), (70, 230324), (71, 227080), (140, 115162), (142, 113540), (280, 57581), (284, 56770), (355, 45416), (497, 32440), (568, 28385), (710, 22708), (811, 19880), (994, 16220), (1420, 11354), (1622, 9940), (1988, 8110), (2485, 6488), (2840, 5677), (3244, 4970), (3976, 4055)]