1285372280

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{193}}^1\times {\mathrm{997}}^1$

素因数の和:1368

約数の個数: 64

約数和(自身を含む): 2927413440

約数和(自身を除く): 1642041160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 193, 334, 386, 668, 772, 835, 965, 997, 1336, 1544, 1670, 1930, 1994, 3340, 3860, 3988, 4985, 6680, 7720, 7976, 9970, 19940, 32231, 39880, 64462, 128924, 161155, 166499, 192421, 257848, 322310, 332998, 384842, 644620, 665996, 769684, 832495, 962105, 1289240, 1331992, 1539368, 1664990, 1924210, 3329980, 3848420, 6659960, 7696840, 32134307, 64268614, 128537228, 160671535, 257074456, 321343070, 642686140, 1285372280]

約数ペア:

[(1, 1285372280), (2, 642686140), (4, 321343070), (5, 257074456), (8, 160671535), (10, 128537228), (20, 64268614), (40, 32134307), (167, 7696840), (193, 6659960), (334, 3848420), (386, 3329980), (668, 1924210), (772, 1664990), (835, 1539368), (965, 1331992), (997, 1289240), (1336, 962105), (1544, 832495), (1670, 769684), (1930, 665996), (1994, 644620), (3340, 384842), (3860, 332998), (3988, 322310), (4985, 257848), (6680, 192421), (7720, 166499), (7976, 161155), (9970, 128924), (19940, 64462), (32231, 39880)]