19739888

素因数分解:

$2^4\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 80

約数和(自身を含む): 46663680

約数和(自身を除く): 26923792

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 56, 79, 92, 97, 112, 158, 161, 184, 194, 316, 322, 368, 388, 553, 632, 644, 679, 776, 1106, 1264, 1288, 1358, 1552, 1817, 2212, 2231, 2576, 2716, 3634, 4424, 4462, 5432, 7268, 7663, 8848, 8924, 10864, 12719, 14536, 15326, 15617, 17848, 25438, 29072, 30652, 31234, 35696, 50876, 53641, 61304, 62468, 101752, 107282, 122608, 124936, 176249, 203504, 214564, 249872, 352498, 429128, 704996, 858256, 1233743, 1409992, 2467486, 2819984, 4934972, 9869944, 19739888]

約数ペア:

[(1, 19739888), (2, 9869944), (4, 4934972), (7, 2819984), (8, 2467486), (14, 1409992), (16, 1233743), (23, 858256), (28, 704996), (46, 429128), (56, 352498), (79, 249872), (92, 214564), (97, 203504), (112, 176249), (158, 124936), (161, 122608), (184, 107282), (194, 101752), (316, 62468), (322, 61304), (368, 53641), (388, 50876), (553, 35696), (632, 31234), (644, 30652), (679, 29072), (776, 25438), (1106, 17848), (1264, 15617), (1288, 15326), (1358, 14536), (1552, 12719), (1817, 10864), (2212, 8924), (2231, 8848), (2576, 7663), (2716, 7268), (3634, 5432), (4424, 4462)]