19075905

素因数分解:

$3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:140

約数の個数: 80

約数和(自身を含む): 37519680

約数和(自身を除く): 18443775

約数列:

[1, 3, 5, 9, 15, 19, 27, 37, 45, 57, 67, 81, 95, 111, 135, 171, 185, 201, 285, 333, 335, 405, 513, 555, 603, 703, 855, 999, 1005, 1273, 1539, 1665, 1809, 2109, 2479, 2565, 2997, 3015, 3515, 3819, 4995, 5427, 6327, 6365, 7437, 7695, 9045, 10545, 11457, 12395, 14985, 18981, 19095, 22311, 27135, 31635, 34371, 37185, 47101, 56943, 57285, 66933, 94905, 103113, 111555, 141303, 171855, 200799, 235505, 284715, 334665, 423909, 515565, 706515, 1003995, 1271727, 2119545, 3815181, 6358635, 19075905]

約数ペア:

[(1, 19075905), (3, 6358635), (5, 3815181), (9, 2119545), (15, 1271727), (19, 1003995), (27, 706515), (37, 515565), (45, 423909), (57, 334665), (67, 284715), (81, 235505), (95, 200799), (111, 171855), (135, 141303), (171, 111555), (185, 103113), (201, 94905), (285, 66933), (333, 57285), (335, 56943), (405, 47101), (513, 37185), (555, 34371), (603, 31635), (703, 27135), (855, 22311), (999, 19095), (1005, 18981), (1273, 14985), (1539, 12395), (1665, 11457), (1809, 10545), (2109, 9045), (2479, 7695), (2565, 7437), (2997, 6365), (3015, 6327), (3515, 5427), (3819, 4995)]