81786016

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{47}}^2\times {\mathrm{89}}^1$

素因数の和:206

約数の個数: 72

約数和(自身を含む): 179160660

約数和(自身を除く): 97374644

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 89, 94, 104, 178, 188, 208, 356, 376, 416, 611, 712, 752, 1157, 1222, 1424, 1504, 2209, 2314, 2444, 2848, 4183, 4418, 4628, 4888, 8366, 8836, 9256, 9776, 16732, 17672, 18512, 19552, 28717, 33464, 35344, 37024, 54379, 57434, 66928, 70688, 108758, 114868, 133856, 196601, 217516, 229736, 393202, 435032, 459472, 786404, 870064, 918944, 1572808, 1740128, 2555813, 3145616, 5111626, 6291232, 10223252, 20446504, 40893008, 81786016]

約数ペア:

[(1, 81786016), (2, 40893008), (4, 20446504), (8, 10223252), (13, 6291232), (16, 5111626), (26, 3145616), (32, 2555813), (47, 1740128), (52, 1572808), (89, 918944), (94, 870064), (104, 786404), (178, 459472), (188, 435032), (208, 393202), (356, 229736), (376, 217516), (416, 196601), (611, 133856), (712, 114868), (752, 108758), (1157, 70688), (1222, 66928), (1424, 57434), (1504, 54379), (2209, 37024), (2314, 35344), (2444, 33464), (2848, 28717), (4183, 19552), (4418, 18512), (4628, 17672), (4888, 16732), (8366, 9776), (8836, 9256)]