9017780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1249}}^1$

素因数の和:1296

約数の個数: 36

約数和(自身を含む): 20002500

約数和(自身を除く): 10984720

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1249, 1444, 1805, 2498, 3610, 4996, 6245, 7220, 12490, 23731, 24980, 47462, 94924, 118655, 237310, 450889, 474620, 901778, 1803556, 2254445, 4508890, 9017780]

約数ペア:

[(1, 9017780), (2, 4508890), (4, 2254445), (5, 1803556), (10, 901778), (19, 474620), (20, 450889), (38, 237310), (76, 118655), (95, 94924), (190, 47462), (361, 24980), (380, 23731), (722, 12490), (1249, 7220), (1444, 6245), (1805, 4996), (2498, 3610)]