71620172

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{1999}}^1$

素因数の和:2082

約数の個数: 36

約数和(自身を含む): 138348000

約数和(自身を除く): 66727828

約数列:

[1, 2, 4, 13, 26, 52, 53, 106, 169, 212, 338, 676, 689, 1378, 1999, 2756, 3998, 7996, 8957, 17914, 25987, 35828, 51974, 103948, 105947, 211894, 337831, 423788, 675662, 1351324, 1377311, 2754622, 5509244, 17905043, 35810086, 71620172]

約数ペア:

[(1, 71620172), (2, 35810086), (4, 17905043), (13, 5509244), (26, 2754622), (52, 1377311), (53, 1351324), (106, 675662), (169, 423788), (212, 337831), (338, 211894), (676, 105947), (689, 103948), (1378, 51974), (1999, 35828), (2756, 25987), (3998, 17914), (7996, 8957)]