131872208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1471}}^1$

素因数の和:1923

約数の個数: 40

約数和(自身を含む): 275982336

約数和(自身を除く): 144110128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 431, 862, 1471, 1724, 2942, 3448, 5603, 5884, 6896, 11206, 11768, 19123, 22412, 23536, 38246, 44824, 76492, 89648, 152984, 305968, 634001, 1268002, 2536004, 5072008, 8242013, 10144016, 16484026, 32968052, 65936104, 131872208]

約数ペア:

[(1, 131872208), (2, 65936104), (4, 32968052), (8, 16484026), (13, 10144016), (16, 8242013), (26, 5072008), (52, 2536004), (104, 1268002), (208, 634001), (431, 305968), (862, 152984), (1471, 89648), (1724, 76492), (2942, 44824), (3448, 38246), (5603, 23536), (5884, 22412), (6896, 19123), (11206, 11768)]