399839056

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{351971}}^1$

素因数の和:352050

約数の個数: 20

約数和(自身を含む): 785601504

約数和(自身を除く): 385762448

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 351971, 703942, 1407884, 2815768, 5631536, 24989941, 49979882, 99959764, 199919528, 399839056]

約数ペア:

[(1, 399839056), (2, 199919528), (4, 99959764), (8, 49979882), (16, 24989941), (71, 5631536), (142, 2815768), (284, 1407884), (568, 703942), (1136, 351971)]