20000531328

素因数分解:

$2^7\times 3^1\times {\mathrm{193}}^1\times {\mathrm{211}}^1\times {\mathrm{1279}}^1$

素因数の和:1700

約数の個数: 128

約数和(自身を含む): 53696716800

約数和(自身を除く): 33696185472

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 193, 211, 384, 386, 422, 579, 633, 772, 844, 1158, 1266, 1279, 1544, 1688, 2316, 2532, 2558, 3088, 3376, 3837, 4632, 5064, 5116, 6176, 6752, 7674, 9264, 10128, 10232, 12352, 13504, 15348, 18528, 20256, 20464, 24704, 27008, 30696, 37056, 40512, 40723, 40928, 61392, 74112, 81024, 81446, 81856, 122169, 122784, 162892, 163712, 244338, 245568, 246847, 269869, 325784, 488676, 491136, 493694, 539738, 651568, 740541, 809607, 977352, 987388, 1079476, 1303136, 1481082, 1619214, 1954704, 1974776, 2158952, 2606272, 2962164, 3238428, 3909408, 3949552, 4317904, 5212544, 5924328, 6476856, 7818816, 7899104, 8635808, 11848656, 12953712, 15637632, 15798208, 17271616, 23697312, 25907424, 31596416, 34543232, 47394624, 51814848, 52084717, 94789248, 103629696, 104169434, 156254151, 208338868, 312508302, 416677736, 625016604, 833355472, 1250033208, 1666710944, 2500066416, 3333421888, 5000132832, 6666843776, 10000265664, 20000531328]

約数ペア:

[(1, 20000531328), (2, 10000265664), (3, 6666843776), (4, 5000132832), (6, 3333421888), (8, 2500066416), (12, 1666710944), (16, 1250033208), (24, 833355472), (32, 625016604), (48, 416677736), (64, 312508302), (96, 208338868), (128, 156254151), (192, 104169434), (193, 103629696), (211, 94789248), (384, 52084717), (386, 51814848), (422, 47394624), (579, 34543232), (633, 31596416), (772, 25907424), (844, 23697312), (1158, 17271616), (1266, 15798208), (1279, 15637632), (1544, 12953712), (1688, 11848656), (2316, 8635808), (2532, 7899104), (2558, 7818816), (3088, 6476856), (3376, 5924328), (3837, 5212544), (4632, 4317904), (5064, 3949552), (5116, 3909408), (6176, 3238428), (6752, 2962164), (7674, 2606272), (9264, 2158952), (10128, 1974776), (10232, 1954704), (12352, 1619214), (13504, 1481082), (15348, 1303136), (18528, 1079476), (20256, 987388), (20464, 977352), (24704, 809607), (27008, 740541), (30696, 651568), (37056, 539738), (40512, 493694), (40723, 491136), (40928, 488676), (61392, 325784), (74112, 269869), (81024, 246847), (81446, 245568), (81856, 244338), (122169, 163712), (122784, 162892)]