396039440

素因数分解:

$2^4\times 5^1\times {\mathrm{4950493}}^1$

素因数の和:4950506

約数の個数: 20

約数和(自身を含む): 920791884

約数和(自身を除く): 524752444

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4950493, 9900986, 19801972, 24752465, 39603944, 49504930, 79207888, 99009860, 198019720, 396039440]

約数ペア:

[(1, 396039440), (2, 198019720), (4, 99009860), (5, 79207888), (8, 49504930), (10, 39603944), (16, 24752465), (20, 19801972), (40, 9900986), (80, 4950493)]