20668736

素因数分解:

$2^6\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{157}}^1$

素因数の和:208

約数の個数: 84

約数和(自身を含む): 48038004

約数和(自身を除く): 27369268

約数列:

[1, 2, 4, 8, 11, 16, 17, 22, 32, 34, 44, 64, 68, 88, 121, 136, 157, 176, 187, 242, 272, 314, 352, 374, 484, 544, 628, 704, 748, 968, 1088, 1256, 1496, 1727, 1936, 2057, 2512, 2669, 2992, 3454, 3872, 4114, 5024, 5338, 5984, 6908, 7744, 8228, 10048, 10676, 11968, 13816, 16456, 18997, 21352, 27632, 29359, 32912, 37994, 42704, 55264, 58718, 65824, 75988, 85408, 110528, 117436, 131648, 151976, 170816, 234872, 303952, 322949, 469744, 607904, 645898, 939488, 1215808, 1291796, 1878976, 2583592, 5167184, 10334368, 20668736]

約数ペア:

[(1, 20668736), (2, 10334368), (4, 5167184), (8, 2583592), (11, 1878976), (16, 1291796), (17, 1215808), (22, 939488), (32, 645898), (34, 607904), (44, 469744), (64, 322949), (68, 303952), (88, 234872), (121, 170816), (136, 151976), (157, 131648), (176, 117436), (187, 110528), (242, 85408), (272, 75988), (314, 65824), (352, 58718), (374, 55264), (484, 42704), (544, 37994), (628, 32912), (704, 29359), (748, 27632), (968, 21352), (1088, 18997), (1256, 16456), (1496, 13816), (1727, 11968), (1936, 10676), (2057, 10048), (2512, 8228), (2669, 7744), (2992, 6908), (3454, 5984), (3872, 5338), (4114, 5024)]