258897560

素因数分解:

$2^3\times 5^1\times {\mathrm{887}}^1\times {\mathrm{7297}}^1$

素因数の和:8195

約数の個数: 32

約数和(自身を含む): 583256160

約数和(自身を除く): 324358600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 887, 1774, 3548, 4435, 7096, 7297, 8870, 14594, 17740, 29188, 35480, 36485, 58376, 72970, 145940, 291880, 6472439, 12944878, 25889756, 32362195, 51779512, 64724390, 129448780, 258897560]

約数ペア:

[(1, 258897560), (2, 129448780), (4, 64724390), (5, 51779512), (8, 32362195), (10, 25889756), (20, 12944878), (40, 6472439), (887, 291880), (1774, 145940), (3548, 72970), (4435, 58376), (7096, 36485), (7297, 35480), (8870, 29188), (14594, 17740)]