20199206540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{135329}}^1$

素因数の和:135794

約数の個数: 48

約数和(自身を含む): 45016171200

約数和(自身を除く): 24816964660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 439, 878, 1756, 2195, 4390, 7463, 8780, 14926, 29852, 37315, 74630, 135329, 149260, 270658, 541316, 676645, 1353290, 2300593, 2706580, 4601186, 9202372, 11502965, 23005930, 46011860, 59409431, 118818862, 237637724, 297047155, 594094310, 1009960327, 1188188620, 2019920654, 4039841308, 5049801635, 10099603270, 20199206540]

約数ペア:

[(1, 20199206540), (2, 10099603270), (4, 5049801635), (5, 4039841308), (10, 2019920654), (17, 1188188620), (20, 1009960327), (34, 594094310), (68, 297047155), (85, 237637724), (170, 118818862), (340, 59409431), (439, 46011860), (878, 23005930), (1756, 11502965), (2195, 9202372), (4390, 4601186), (7463, 2706580), (8780, 2300593), (14926, 1353290), (29852, 676645), (37315, 541316), (74630, 270658), (135329, 149260)]