20121325984

素因数分解:

$2^5\times {\mathrm{157}}^1\times {\mathrm{1373}}^1\times {\mathrm{2917}}^1$

素因数の和:4457

約数の個数: 48

約数和(自身を含む): 39908890728

約数和(自身を除く): 19787564744

約数列:

[1, 2, 4, 8, 16, 32, 157, 314, 628, 1256, 1373, 2512, 2746, 2917, 5024, 5492, 5834, 10984, 11668, 21968, 23336, 43936, 46672, 93344, 215561, 431122, 457969, 862244, 915938, 1724488, 1831876, 3448976, 3663752, 4005041, 6897952, 7327504, 8010082, 14655008, 16020164, 32040328, 64080656, 128161312, 628791437, 1257582874, 2515165748, 5030331496, 10060662992, 20121325984]

約数ペア:

[(1, 20121325984), (2, 10060662992), (4, 5030331496), (8, 2515165748), (16, 1257582874), (32, 628791437), (157, 128161312), (314, 64080656), (628, 32040328), (1256, 16020164), (1373, 14655008), (2512, 8010082), (2746, 7327504), (2917, 6897952), (5024, 4005041), (5492, 3663752), (5834, 3448976), (10984, 1831876), (11668, 1724488), (21968, 915938), (23336, 862244), (43936, 457969), (46672, 431122), (93344, 215561)]