81662828

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{107}}^1\times {\mathrm{1129}}^1$

素因数の和:1266

約数の個数: 36

約数和(自身を含む): 156333240

約数和(自身を除く): 74670412

約数列:

[1, 2, 4, 13, 26, 52, 107, 169, 214, 338, 428, 676, 1129, 1391, 2258, 2782, 4516, 5564, 14677, 18083, 29354, 36166, 58708, 72332, 120803, 190801, 241606, 381602, 483212, 763204, 1570439, 3140878, 6281756, 20415707, 40831414, 81662828]

約数ペア:

[(1, 81662828), (2, 40831414), (4, 20415707), (13, 6281756), (26, 3140878), (52, 1570439), (107, 763204), (169, 483212), (214, 381602), (338, 241606), (428, 190801), (676, 120803), (1129, 72332), (1391, 58708), (2258, 36166), (2782, 29354), (4516, 18083), (5564, 14677)]