81622728

素因数分解:

$2^3\times 3^5\times {\mathrm{11}}^2\times {\mathrm{347}}^1$

素因数の和:390

約数の個数: 144

約数和(自身を含む): 252710640

約数和(自身を除く): 171087912

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 18, 22, 24, 27, 33, 36, 44, 54, 66, 72, 81, 88, 99, 108, 121, 132, 162, 198, 216, 242, 243, 264, 297, 324, 347, 363, 396, 484, 486, 594, 648, 694, 726, 792, 891, 968, 972, 1041, 1089, 1188, 1388, 1452, 1782, 1944, 2082, 2178, 2376, 2673, 2776, 2904, 3123, 3267, 3564, 3817, 4164, 4356, 5346, 6246, 6534, 7128, 7634, 8328, 8712, 9369, 9801, 10692, 11451, 12492, 13068, 15268, 18738, 19602, 21384, 22902, 24984, 26136, 28107, 29403, 30536, 34353, 37476, 39204, 41987, 45804, 56214, 58806, 68706, 74952, 78408, 83974, 84321, 91608, 103059, 112428, 117612, 125961, 137412, 167948, 168642, 206118, 224856, 235224, 251922, 274824, 309177, 335896, 337284, 377883, 412236, 503844, 618354, 674568, 755766, 824472, 927531, 1007688, 1133649, 1236708, 1511532, 1855062, 2267298, 2473416, 3023064, 3400947, 3710124, 4534596, 6801894, 7420248, 9069192, 10202841, 13603788, 20405682, 27207576, 40811364, 81622728]

約数ペア:

[(1, 81622728), (2, 40811364), (3, 27207576), (4, 20405682), (6, 13603788), (8, 10202841), (9, 9069192), (11, 7420248), (12, 6801894), (18, 4534596), (22, 3710124), (24, 3400947), (27, 3023064), (33, 2473416), (36, 2267298), (44, 1855062), (54, 1511532), (66, 1236708), (72, 1133649), (81, 1007688), (88, 927531), (99, 824472), (108, 755766), (121, 674568), (132, 618354), (162, 503844), (198, 412236), (216, 377883), (242, 337284), (243, 335896), (264, 309177), (297, 274824), (324, 251922), (347, 235224), (363, 224856), (396, 206118), (484, 168642), (486, 167948), (594, 137412), (648, 125961), (694, 117612), (726, 112428), (792, 103059), (891, 91608), (968, 84321), (972, 83974), (1041, 78408), (1089, 74952), (1188, 68706), (1388, 58806), (1452, 56214), (1782, 45804), (1944, 41987), (2082, 39204), (2178, 37476), (2376, 34353), (2673, 30536), (2776, 29403), (2904, 28107), (3123, 26136), (3267, 24984), (3564, 22902), (3817, 21384), (4164, 19602), (4356, 18738), (5346, 15268), (6246, 13068), (6534, 12492), (7128, 11451), (7634, 10692), (8328, 9801), (8712, 9369)]