318478880

素因数分解:

$2^5\times 5^1\times {\mathrm{1990493}}^1$

素因数の和:1990508

約数の個数: 24

約数和(自身を含む): 752406732

約数和(自身を除く): 433927852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1990493, 3980986, 7961972, 9952465, 15923944, 19904930, 31847888, 39809860, 63695776, 79619720, 159239440, 318478880]

約数ペア:

[(1, 318478880), (2, 159239440), (4, 79619720), (5, 63695776), (8, 39809860), (10, 31847888), (16, 19904930), (20, 15923944), (32, 9952465), (40, 7961972), (80, 3980986), (160, 1990493)]