20123808045

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2857}}^1\times {\mathrm{42689}}^1$

素因数の和:45565

約数の個数: 32

約数和(自身を含む): 35138309760

約数和(自身を除く): 15014501715

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 2857, 8571, 14285, 31427, 42689, 42855, 94281, 128067, 157135, 213445, 469579, 471405, 640335, 1408737, 2347895, 7043685, 121962473, 365887419, 609812365, 1341587203, 1829437095, 4024761609, 6707936015, 20123808045]

約数ペア:

[(1, 20123808045), (3, 6707936015), (5, 4024761609), (11, 1829437095), (15, 1341587203), (33, 609812365), (55, 365887419), (165, 121962473), (2857, 7043685), (8571, 2347895), (14285, 1408737), (31427, 640335), (42689, 471405), (42855, 469579), (94281, 213445), (128067, 157135)]