148978640

素因数分解:

$2^4\times 5^1\times {\mathrm{1862233}}^1$

素因数の和:1862246

約数の個数: 20

約数和(自身を含む): 346375524

約数和(自身を除く): 197396884

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1862233, 3724466, 7448932, 9311165, 14897864, 18622330, 29795728, 37244660, 74489320, 148978640]

約数ペア:

[(1, 148978640), (2, 74489320), (4, 37244660), (5, 29795728), (8, 18622330), (10, 14897864), (16, 9311165), (20, 7448932), (40, 3724466), (80, 1862233)]