28489960

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41897}}^1$

素因数の和:41925

約数の個数: 32

約数和(自身を含む): 67874760

約数和(自身を除く): 39384800

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 41897, 83794, 167588, 209485, 335176, 418970, 712249, 837940, 1424498, 1675880, 2848996, 3561245, 5697992, 7122490, 14244980, 28489960]

約数ペア:

[(1, 28489960), (2, 14244980), (4, 7122490), (5, 5697992), (8, 3561245), (10, 2848996), (17, 1675880), (20, 1424498), (34, 837940), (40, 712249), (68, 418970), (85, 335176), (136, 209485), (170, 167588), (340, 83794), (680, 41897)]