31831878

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{457}}^1$

素因数の和:541

約数の個数: 64

約数和(自身を含む): 73866240

約数和(自身を除く): 42034362

約数列:

[1, 2, 3, 6, 13, 19, 26, 38, 39, 47, 57, 78, 94, 114, 141, 247, 282, 457, 494, 611, 741, 893, 914, 1222, 1371, 1482, 1786, 1833, 2679, 2742, 3666, 5358, 5941, 8683, 11609, 11882, 17366, 17823, 21479, 23218, 26049, 34827, 35646, 42958, 52098, 64437, 69654, 112879, 128874, 225758, 279227, 338637, 408101, 558454, 677274, 816202, 837681, 1224303, 1675362, 2448606, 5305313, 10610626, 15915939, 31831878]

約数ペア:

[(1, 31831878), (2, 15915939), (3, 10610626), (6, 5305313), (13, 2448606), (19, 1675362), (26, 1224303), (38, 837681), (39, 816202), (47, 677274), (57, 558454), (78, 408101), (94, 338637), (114, 279227), (141, 225758), (247, 128874), (282, 112879), (457, 69654), (494, 64437), (611, 52098), (741, 42958), (893, 35646), (914, 34827), (1222, 26049), (1371, 23218), (1482, 21479), (1786, 17823), (1833, 17366), (2679, 11882), (2742, 11609), (3666, 8683), (5358, 5941)]