1640251688

素因数分解:

$2^3\times {\mathrm{631}}^1\times {\mathrm{324931}}^1$

素因数の和:325568

約数の個数: 16

約数和(自身を含む): 3080355360

約数和(自身を除く): 1440103672

約数列:

[1, 2, 4, 8, 631, 1262, 2524, 5048, 324931, 649862, 1299724, 2599448, 205031461, 410062922, 820125844, 1640251688]

約数ペア:

[(1, 1640251688), (2, 820125844), (4, 410062922), (8, 205031461), (631, 2599448), (1262, 1299724), (2524, 649862), (5048, 324931)]