28091180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{8311}}^1$

素因数の和:8346

約数の個数: 36

約数和(自身を含む): 63886032

約数和(自身を除く): 35794852

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 8311, 16622, 33244, 41555, 83110, 108043, 166220, 216086, 432172, 540215, 1080430, 1404559, 2160860, 2809118, 5618236, 7022795, 14045590, 28091180]

約数ペア:

[(1, 28091180), (2, 14045590), (4, 7022795), (5, 5618236), (10, 2809118), (13, 2160860), (20, 1404559), (26, 1080430), (52, 540215), (65, 432172), (130, 216086), (169, 166220), (260, 108043), (338, 83110), (676, 41555), (845, 33244), (1690, 16622), (3380, 8311)]