258920350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{398339}}^1$

素因数の和:398364

約数の個数: 24

約数和(自身を含む): 518638680

約数和(自身を除く): 259718330

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 398339, 796678, 1991695, 3983390, 5178407, 9958475, 10356814, 19916950, 25892035, 51784070, 129460175, 258920350]

約数ペア:

[(1, 258920350), (2, 129460175), (5, 51784070), (10, 25892035), (13, 19916950), (25, 10356814), (26, 9958475), (50, 5178407), (65, 3983390), (130, 1991695), (325, 796678), (650, 398339)]