199983664

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{657841}}^1$

素因数の和:657868

約数の個数: 20

約数和(自身を含む): 407862040

約数和(自身を除く): 207878376

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 657841, 1315682, 2631364, 5262728, 10525456, 12498979, 24997958, 49995916, 99991832, 199983664]

約数ペア:

[(1, 199983664), (2, 99991832), (4, 49995916), (8, 24997958), (16, 12498979), (19, 10525456), (38, 5262728), (76, 2631364), (152, 1315682), (304, 657841)]