20446504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{89}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 42657300

約数和(自身を除く): 22210796

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 89, 94, 104, 178, 188, 356, 376, 611, 712, 1157, 1222, 2209, 2314, 2444, 4183, 4418, 4628, 4888, 8366, 8836, 9256, 16732, 17672, 28717, 33464, 54379, 57434, 108758, 114868, 196601, 217516, 229736, 393202, 435032, 786404, 1572808, 2555813, 5111626, 10223252, 20446504]

約数ペア:

[(1, 20446504), (2, 10223252), (4, 5111626), (8, 2555813), (13, 1572808), (26, 786404), (47, 435032), (52, 393202), (89, 229736), (94, 217516), (104, 196601), (178, 114868), (188, 108758), (356, 57434), (376, 54379), (611, 33464), (712, 28717), (1157, 17672), (1222, 16732), (2209, 9256), (2314, 8836), (2444, 8366), (4183, 4888), (4418, 4628)]