399487972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{74587}}^1$

素因数の和:74707

約数の個数: 24

約数和(自身を含む): 760200896

約数和(自身を除く): 360712924

約数列:

[1, 2, 4, 13, 26, 52, 103, 206, 412, 1339, 2678, 5356, 74587, 149174, 298348, 969631, 1939262, 3878524, 7682461, 15364922, 30729844, 99871993, 199743986, 399487972]

約数ペア:

[(1, 399487972), (2, 199743986), (4, 99871993), (13, 30729844), (26, 15364922), (52, 7682461), (103, 3878524), (206, 1939262), (412, 969631), (1339, 298348), (2678, 149174), (5356, 74587)]