40207180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{154643}}^1$

素因数の和:154665

約数の個数: 24

約数和(自身を含む): 90930672

約数和(自身を除く): 50723492

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 154643, 309286, 618572, 773215, 1546430, 2010359, 3092860, 4020718, 8041436, 10051795, 20103590, 40207180]

約数ペア:

[(1, 40207180), (2, 20103590), (4, 10051795), (5, 8041436), (10, 4020718), (13, 3092860), (20, 2010359), (26, 1546430), (52, 773215), (65, 618572), (130, 309286), (260, 154643)]