20779304

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1$

素因数の和:139

約数の個数: 128

約数和(自身を含む): 53706240

約数和(自身を除く): 32926936

約数列:

[1, 2, 4, 7, 8, 13, 14, 17, 23, 26, 28, 34, 46, 52, 56, 68, 73, 91, 92, 104, 119, 136, 146, 161, 182, 184, 221, 238, 292, 299, 322, 364, 391, 442, 476, 511, 584, 598, 644, 728, 782, 884, 949, 952, 1022, 1196, 1241, 1288, 1547, 1564, 1679, 1768, 1898, 2044, 2093, 2392, 2482, 2737, 3094, 3128, 3358, 3796, 4088, 4186, 4964, 5083, 5474, 6188, 6643, 6716, 7592, 8372, 8687, 9928, 10166, 10948, 11753, 12376, 13286, 13432, 16133, 16744, 17374, 20332, 21827, 21896, 23506, 26572, 28543, 32266, 34748, 35581, 40664, 43654, 47012, 53144, 57086, 64532, 69496, 71162, 87308, 94024, 112931, 114172, 129064, 142324, 152789, 174616, 199801, 225862, 228344, 284648, 305578, 371059, 399602, 451724, 611156, 742118, 799204, 903448, 1222312, 1484236, 1598408, 2597413, 2968472, 5194826, 10389652, 20779304]

約数ペア:

[(1, 20779304), (2, 10389652), (4, 5194826), (7, 2968472), (8, 2597413), (13, 1598408), (14, 1484236), (17, 1222312), (23, 903448), (26, 799204), (28, 742118), (34, 611156), (46, 451724), (52, 399602), (56, 371059), (68, 305578), (73, 284648), (91, 228344), (92, 225862), (104, 199801), (119, 174616), (136, 152789), (146, 142324), (161, 129064), (182, 114172), (184, 112931), (221, 94024), (238, 87308), (292, 71162), (299, 69496), (322, 64532), (364, 57086), (391, 53144), (442, 47012), (476, 43654), (511, 40664), (584, 35581), (598, 34748), (644, 32266), (728, 28543), (782, 26572), (884, 23506), (949, 21896), (952, 21827), (1022, 20332), (1196, 17374), (1241, 16744), (1288, 16133), (1547, 13432), (1564, 13286), (1679, 12376), (1768, 11753), (1898, 10948), (2044, 10166), (2093, 9928), (2392, 8687), (2482, 8372), (2737, 7592), (3094, 6716), (3128, 6643), (3358, 6188), (3796, 5474), (4088, 5083), (4186, 4964)]