20912016

素因数分解:

$2^4\times 3^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:304

約数の個数: 80

約数和(自身を含む): 56871360

約数和(自身を除く): 35959344

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 29, 48, 58, 83, 87, 116, 166, 174, 181, 232, 249, 332, 348, 362, 464, 498, 543, 664, 696, 724, 996, 1086, 1328, 1392, 1448, 1992, 2172, 2407, 2896, 3984, 4344, 4814, 5249, 7221, 8688, 9628, 10498, 14442, 15023, 15747, 19256, 20996, 28884, 30046, 31494, 38512, 41992, 45069, 57768, 60092, 62988, 83984, 90138, 115536, 120184, 125976, 180276, 240368, 251952, 360552, 435667, 721104, 871334, 1307001, 1742668, 2614002, 3485336, 5228004, 6970672, 10456008, 20912016]

約数ペア:

[(1, 20912016), (2, 10456008), (3, 6970672), (4, 5228004), (6, 3485336), (8, 2614002), (12, 1742668), (16, 1307001), (24, 871334), (29, 721104), (48, 435667), (58, 360552), (83, 251952), (87, 240368), (116, 180276), (166, 125976), (174, 120184), (181, 115536), (232, 90138), (249, 83984), (332, 62988), (348, 60092), (362, 57768), (464, 45069), (498, 41992), (543, 38512), (664, 31494), (696, 30046), (724, 28884), (996, 20996), (1086, 19256), (1328, 15747), (1392, 15023), (1448, 14442), (1992, 10498), (2172, 9628), (2407, 8688), (2896, 7221), (3984, 5249), (4344, 4814)]