199974145

素因数分解:

$5^1\times 7^3\times {\mathrm{17}}^1\times {\mathrm{19}}^3$

素因数の和:100

約数の個数: 64

約数和(自身を含む): 312768000

約数和(自身を除く): 112793855

約数列:

[1, 5, 7, 17, 19, 35, 49, 85, 95, 119, 133, 245, 323, 343, 361, 595, 665, 833, 931, 1615, 1715, 1805, 2261, 2527, 4165, 4655, 5831, 6137, 6517, 6859, 11305, 12635, 15827, 17689, 29155, 30685, 32585, 34295, 42959, 48013, 79135, 88445, 110789, 116603, 123823, 214795, 240065, 300713, 336091, 553945, 583015, 619115, 816221, 1503565, 1680455, 2104991, 2352637, 4081105, 5713547, 10524955, 11763185, 28567735, 39994829, 199974145]

約数ペア:

[(1, 199974145), (5, 39994829), (7, 28567735), (17, 11763185), (19, 10524955), (35, 5713547), (49, 4081105), (85, 2352637), (95, 2104991), (119, 1680455), (133, 1503565), (245, 816221), (323, 619115), (343, 583015), (361, 553945), (595, 336091), (665, 300713), (833, 240065), (931, 214795), (1615, 123823), (1715, 116603), (1805, 110789), (2261, 88445), (2527, 79135), (4165, 48013), (4655, 42959), (5831, 34295), (6137, 32585), (6517, 30685), (6859, 29155), (11305, 17689), (12635, 15827)]