18212740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10007}}^1$

素因数の和:10036

約数の個数: 48

約数和(自身を含む): 47077632

約数和(自身を除く): 28864892

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10007, 20014, 40028, 50035, 70049, 100070, 130091, 140098, 200140, 260182, 280196, 350245, 520364, 650455, 700490, 910637, 1300910, 1400980, 1821274, 2601820, 3642548, 4553185, 9106370, 18212740]

約数ペア:

[(1, 18212740), (2, 9106370), (4, 4553185), (5, 3642548), (7, 2601820), (10, 1821274), (13, 1400980), (14, 1300910), (20, 910637), (26, 700490), (28, 650455), (35, 520364), (52, 350245), (65, 280196), (70, 260182), (91, 200140), (130, 140098), (140, 130091), (182, 100070), (260, 70049), (364, 50035), (455, 40028), (910, 20014), (1820, 10007)]