15737080

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{991}}^1$

素因数の和:1399

約数の個数: 32

約数和(自身を含む): 35533440

約数和(自身を除く): 19796360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 991, 1588, 1982, 1985, 3176, 3964, 3970, 4955, 7928, 7940, 9910, 15880, 19820, 39640, 393427, 786854, 1573708, 1967135, 3147416, 3934270, 7868540, 15737080]

約数ペア:

[(1, 15737080), (2, 7868540), (4, 3934270), (5, 3147416), (8, 1967135), (10, 1573708), (20, 786854), (40, 393427), (397, 39640), (794, 19820), (991, 15880), (1588, 9910), (1982, 7940), (1985, 7928), (3176, 4955), (3964, 3970)]