81190161

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{113}}^1$

素因数の和:247

約数の個数: 64

約数和(自身を含む): 137894400

約数和(自身を除く): 56704239

約数列:

[1, 3, 9, 13, 23, 27, 39, 69, 89, 113, 117, 207, 267, 299, 339, 351, 621, 801, 897, 1017, 1157, 1469, 2047, 2403, 2599, 2691, 3051, 3471, 4407, 6141, 7797, 8073, 10057, 10413, 13221, 18423, 23391, 26611, 30171, 31239, 33787, 39663, 55269, 70173, 79833, 90513, 101361, 130741, 231311, 239499, 271539, 304083, 392223, 693933, 718497, 912249, 1176669, 2081799, 3007043, 3530007, 6245397, 9021129, 27063387, 81190161]

約数ペア:

[(1, 81190161), (3, 27063387), (9, 9021129), (13, 6245397), (23, 3530007), (27, 3007043), (39, 2081799), (69, 1176669), (89, 912249), (113, 718497), (117, 693933), (207, 392223), (267, 304083), (299, 271539), (339, 239499), (351, 231311), (621, 130741), (801, 101361), (897, 90513), (1017, 79833), (1157, 70173), (1469, 55269), (2047, 39663), (2403, 33787), (2599, 31239), (2691, 30171), (3051, 26611), (3471, 23391), (4407, 18423), (6141, 13221), (7797, 10413), (8073, 10057)]